Home / 102,901.56-141,962.12-67,078.52

Finding the Fourth Proportional to 102,901.56, 141,962.12 and 67,078.52

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Solution

The fourth proportional to 102,901.56, 141,962.12 and 67,078.52 is: 92,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,901.56 : 141,962.12 = 67,078.52 : x
  2. Step 2: Convert to fraction form
    102,901.56/141,962.12 = 67,078.52/x
  3. Step 3: Cross multiply
    102,901.56x = 141,962.12 × 67,078.52
  4. Step 4: Simplify right side
    102,901.56x = 9,522,608,905.66
  5. Step 5: Solve for x
    x = 9,522,608,905.66/102,901.56
  6. Step 6: Final answer
    x = 92,540.96

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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.