Home / 102,318.39-141,257.91-67,909.79

Finding the Fourth Proportional to 102,318.39, 141,257.91 and 67,909.79

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Solution

The fourth proportional to 102,318.39, 141,257.91 and 67,909.79 is: 93,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,318.39 : 141,257.91 = 67,909.79 : x
  2. Step 2: Convert to fraction form
    102,318.39/141,257.91 = 67,909.79/x
  3. Step 3: Cross multiply
    102,318.39x = 141,257.91 × 67,909.79
  4. Step 4: Simplify right side
    102,318.39x = 9,592,793,958.10
  5. Step 5: Solve for x
    x = 9,592,793,958.10/102,318.39
  6. Step 6: Final answer
    x = 93,754.35

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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.