Home / 156,545.20-234,625.20-72,188.20

Finding the Fourth Proportional to 156,545.20, 234,625.20 and 72,188.20

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Solution

The fourth proportional to 156,545.20, 234,625.20 and 72,188.20 is: 108,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,545.20 : 234,625.20 = 72,188.20 : x
  2. Step 2: Convert to fraction form
    156,545.20/234,625.20 = 72,188.20/x
  3. Step 3: Cross multiply
    156,545.20x = 234,625.20 × 72,188.20
  4. Step 4: Simplify right side
    156,545.20x = 16,937,170,862.64
  5. Step 5: Solve for x
    x = 16,937,170,862.64/156,545.20
  6. Step 6: Final answer
    x = 108,193.49

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1.5x scale

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.