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Finding the Fourth Proportional to 159,713.40, 239,570.10 and 75,445.86

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Solution

The fourth proportional to 159,713.40, 239,570.10 and 75,445.86 is: 113,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,713.40 : 239,570.10 = 75,445.86 : x
  2. Step 2: Convert to fraction form
    159,713.40/239,570.10 = 75,445.86/x
  3. Step 3: Cross multiply
    159,713.40x = 239,570.10 × 75,445.86
  4. Step 4: Simplify right side
    159,713.40x = 18,074,572,224.79
  5. Step 5: Solve for x
    x = 18,074,572,224.79/159,713.40
  6. Step 6: Final answer
    x = 113,168.79

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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.