Home / 99,617.42-149,470.28-52,221.18

Finding the Fourth Proportional to 99,617.42, 149,470.28 and 52,221.18

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Solution

The fourth proportional to 99,617.42, 149,470.28 and 52,221.18 is: 78,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,617.42 : 149,470.28 = 52,221.18 : x
  2. Step 2: Convert to fraction form
    99,617.42/149,470.28 = 52,221.18/x
  3. Step 3: Cross multiply
    99,617.42x = 149,470.28 × 52,221.18
  4. Step 4: Simplify right side
    99,617.42x = 7,805,514,135.42
  5. Step 5: Solve for x
    x = 7,805,514,135.42/99,617.42
  6. Step 6: Final answer
    x = 78,354.92

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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.