Home / 99,646.70-137,434.68-63,840.04

Finding the Fourth Proportional to 99,646.70, 137,434.68 and 63,840.04

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Solution

The fourth proportional to 99,646.70, 137,434.68 and 63,840.04 is: 88,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,646.70 : 137,434.68 = 63,840.04 : x
  2. Step 2: Convert to fraction form
    99,646.70/137,434.68 = 63,840.04/x
  3. Step 3: Cross multiply
    99,646.70x = 137,434.68 × 63,840.04
  4. Step 4: Simplify right side
    99,646.70x = 8,773,835,125.00
  5. Step 5: Solve for x
    x = 8,773,835,125.00/99,646.70
  6. Step 6: Final answer
    x = 88,049.43

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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.