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Finding the Fourth Proportional to 166,674, 230,008.36 and 90,191.42

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Solution

The fourth proportional to 166,674, 230,008.36 and 90,191.42 is: 124,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,674 : 230,008.36 = 90,191.42 : x
  2. Step 2: Convert to fraction form
    166,674/230,008.36 = 90,191.42/x
  3. Step 3: Cross multiply
    166,674x = 230,008.36 × 90,191.42
  4. Step 4: Simplify right side
    166,674x = 20,744,780,600.27
  5. Step 5: Solve for x
    x = 20,744,780,600.27/166,674
  6. Step 6: Final answer
    x = 124,463.21

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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.