Home / 156,504.66-234,443.90-72,149.46

Finding the Fourth Proportional to 156,504.66, 234,443.90 and 72,149.46

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Solution

The fourth proportional to 156,504.66, 234,443.90 and 72,149.46 is: 108,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,504.66 : 234,443.90 = 72,149.46 : x
  2. Step 2: Convert to fraction form
    156,504.66/234,443.90 = 72,149.46/x
  3. Step 3: Cross multiply
    156,504.66x = 234,443.90 × 72,149.46
  4. Step 4: Simplify right side
    156,504.66x = 16,915,000,785.29
  5. Step 5: Solve for x
    x = 16,915,000,785.29/156,504.66
  6. Step 6: Final answer
    x = 108,079.85

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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.