Home / 156,944-216,582.72-86,288

Finding the Fourth Proportional to 156,944, 216,582.72 and 86,288

Calculator

Solution

The fourth proportional to 156,944, 216,582.72 and 86,288 is: 119,077.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,944 : 216,582.72 = 86,288 : x
  2. Step 2: Convert to fraction form
    156,944/216,582.72 = 86,288/x
  3. Step 3: Cross multiply
    156,944x = 216,582.72 × 86,288
  4. Step 4: Simplify right side
    156,944x = 18,688,489,743.36
  5. Step 5: Solve for x
    x = 18,688,489,743.36/156,944
  6. Step 6: Final answer
    x = 119,077.44

Related Problems

Find fourth proportional to 78,472, 108,291.36 and 43,144
Half scale
Find fourth proportional to 313,888, 433,165.44 and 172,576
Double scale
Find fourth proportional to 156,945, 216,584.10 and 86,289
Similar ratio
Find fourth proportional to 235,416, 324,874.08 and 129,432
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.