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Finding the Fourth Proportional to 172,471.70, 258,643.02 and 60,123.08

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Solution

The fourth proportional to 172,471.70, 258,643.02 and 60,123.08 is: 90,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,471.70 : 258,643.02 = 60,123.08 : x
  2. Step 2: Convert to fraction form
    172,471.70/258,643.02 = 60,123.08/x
  3. Step 3: Cross multiply
    172,471.70x = 258,643.02 × 60,123.08
  4. Step 4: Simplify right side
    172,471.70x = 15,550,414,982.90
  5. Step 5: Solve for x
    x = 15,550,414,982.90/172,471.70
  6. Step 6: Final answer
    x = 90,162.13

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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.