Home / 99,511.20-137,304.72-61,763.04

Finding the Fourth Proportional to 99,511.20, 137,304.72 and 61,763.04

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Solution

The fourth proportional to 99,511.20, 137,304.72 and 61,763.04 is: 85,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,511.20 : 137,304.72 = 61,763.04 : x
  2. Step 2: Convert to fraction form
    99,511.20/137,304.72 = 61,763.04/x
  3. Step 3: Cross multiply
    99,511.20x = 137,304.72 × 61,763.04
  4. Step 4: Simplify right side
    99,511.20x = 8,480,356,913.55
  5. Step 5: Solve for x
    x = 8,480,356,913.55/99,511.20
  6. Step 6: Final answer
    x = 85,220.13

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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.