Home / 156,763.75-216,336.30-88,779.03

Finding the Fourth Proportional to 156,763.75, 216,336.30 and 88,779.03

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Solution

The fourth proportional to 156,763.75, 216,336.30 and 88,779.03 is: 122,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,763.75 : 216,336.30 = 88,779.03 : x
  2. Step 2: Convert to fraction form
    156,763.75/216,336.30 = 88,779.03/x
  3. Step 3: Cross multiply
    156,763.75x = 216,336.30 × 88,779.03
  4. Step 4: Simplify right side
    156,763.75x = 19,206,126,867.79
  5. Step 5: Solve for x
    x = 19,206,126,867.79/156,763.75
  6. Step 6: Final answer
    x = 122,516.38

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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.