Home / 99,319.20-136,926.33-67,432.74

Finding the Fourth Proportional to 99,319.20, 136,926.33 and 67,432.74

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Solution

The fourth proportional to 99,319.20, 136,926.33 and 67,432.74 is: 92,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,319.20 : 136,926.33 = 67,432.74 : x
  2. Step 2: Convert to fraction form
    99,319.20/136,926.33 = 67,432.74/x
  3. Step 3: Cross multiply
    99,319.20x = 136,926.33 × 67,432.74
  4. Step 4: Simplify right side
    99,319.20x = 9,233,317,610.04
  5. Step 5: Solve for x
    x = 9,233,317,610.04/99,319.20
  6. Step 6: Final answer
    x = 92,966.09

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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.