Home / 83,213.02-124,712.25-72,496.05

Finding the Fourth Proportional to 83,213.02, 124,712.25 and 72,496.05

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Solution

The fourth proportional to 83,213.02, 124,712.25 and 72,496.05 is: 108,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,213.02 : 124,712.25 = 72,496.05 : x
  2. Step 2: Convert to fraction form
    83,213.02/124,712.25 = 72,496.05/x
  3. Step 3: Cross multiply
    83,213.02x = 124,712.25 × 72,496.05
  4. Step 4: Simplify right side
    83,213.02x = 9,041,145,511.61
  5. Step 5: Solve for x
    x = 9,041,145,511.61/83,213.02
  6. Step 6: Final answer
    x = 108,650.61

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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.