Home / 156,767.20-235,209.12-72,568.32

Finding the Fourth Proportional to 156,767.20, 235,209.12 and 72,568.32

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Solution

The fourth proportional to 156,767.20, 235,209.12 and 72,568.32 is: 108,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,767.20 : 235,209.12 = 72,568.32 : x
  2. Step 2: Convert to fraction form
    156,767.20/235,209.12 = 72,568.32/x
  3. Step 3: Cross multiply
    156,767.20x = 235,209.12 × 72,568.32
  4. Step 4: Simplify right side
    156,767.20x = 17,068,730,687.08
  5. Step 5: Solve for x
    x = 17,068,730,687.08/156,767.20
  6. Step 6: Final answer
    x = 108,879.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.