Home / 99,214.52-136,951.98-65,691.32

Finding the Fourth Proportional to 99,214.52, 136,951.98 and 65,691.32

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Solution

The fourth proportional to 99,214.52, 136,951.98 and 65,691.32 is: 90,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,214.52 : 136,951.98 = 65,691.32 : x
  2. Step 2: Convert to fraction form
    99,214.52/136,951.98 = 65,691.32/x
  3. Step 3: Cross multiply
    99,214.52x = 136,951.98 × 65,691.32
  4. Step 4: Simplify right side
    99,214.52x = 8,996,556,342.81
  5. Step 5: Solve for x
    x = 8,996,556,342.81/99,214.52
  6. Step 6: Final answer
    x = 90,677.82

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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.