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Finding the Fourth Proportional to 125,481.60, 173,171.52 and 71,768.88

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Solution

The fourth proportional to 125,481.60, 173,171.52 and 71,768.88 is: 99,045.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,481.60 : 173,171.52 = 71,768.88 : x
  2. Step 2: Convert to fraction form
    125,481.60/173,171.52 = 71,768.88/x
  3. Step 3: Cross multiply
    125,481.60x = 173,171.52 × 71,768.88
  4. Step 4: Simplify right side
    125,481.60x = 12,428,326,038.30
  5. Step 5: Solve for x
    x = 12,428,326,038.30/125,481.60
  6. Step 6: Final answer
    x = 99,045.01

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1.5x scale

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.