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Finding the Fourth Proportional to 127,402.96, 191,020.72 and 71,248.92

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Solution

The fourth proportional to 127,402.96, 191,020.72 and 71,248.92 is: 106,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,402.96 : 191,020.72 = 71,248.92 : x
  2. Step 2: Convert to fraction form
    127,402.96/191,020.72 = 71,248.92/x
  3. Step 3: Cross multiply
    127,402.96x = 191,020.72 × 71,248.92
  4. Step 4: Simplify right side
    127,402.96x = 13,610,019,997.62
  5. Step 5: Solve for x
    x = 13,610,019,997.62/127,402.96
  6. Step 6: Final answer
    x = 106,826.56

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1.5x scale

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.