Home / 88,691.10-133,036.65-72,944.70

Finding the Fourth Proportional to 88,691.10, 133,036.65 and 72,944.70

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Solution

The fourth proportional to 88,691.10, 133,036.65 and 72,944.70 is: 109,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.10 : 133,036.65 = 72,944.70 : x
  2. Step 2: Convert to fraction form
    88,691.10/133,036.65 = 72,944.70/x
  3. Step 3: Cross multiply
    88,691.10x = 133,036.65 × 72,944.70
  4. Step 4: Simplify right side
    88,691.10x = 9,704,318,523.26
  5. Step 5: Solve for x
    x = 9,704,318,523.26/88,691.10
  6. Step 6: Final answer
    x = 109,417.05

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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.