Home / 156,891.42-216,511.86-85,271.46

Finding the Fourth Proportional to 156,891.42, 216,511.86 and 85,271.46

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Solution

The fourth proportional to 156,891.42, 216,511.86 and 85,271.46 is: 117,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,891.42 : 216,511.86 = 85,271.46 : x
  2. Step 2: Convert to fraction form
    156,891.42/216,511.86 = 85,271.46/x
  3. Step 3: Cross multiply
    156,891.42x = 216,511.86 × 85,271.46
  4. Step 4: Simplify right side
    156,891.42x = 18,462,282,409.52
  5. Step 5: Solve for x
    x = 18,462,282,409.52/156,891.42
  6. Step 6: Final answer
    x = 117,675.54

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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.