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Finding the Fourth Proportional to 159,108.80, 238,657.80 and 40,781.30

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Solution

The fourth proportional to 159,108.80, 238,657.80 and 40,781.30 is: 61,170.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,108.80 : 238,657.80 = 40,781.30 : x
  2. Step 2: Convert to fraction form
    159,108.80/238,657.80 = 40,781.30/x
  3. Step 3: Cross multiply
    159,108.80x = 238,657.80 × 40,781.30
  4. Step 4: Simplify right side
    159,108.80x = 9,732,775,339.14
  5. Step 5: Solve for x
    x = 9,732,775,339.14/159,108.80
  6. Step 6: Final answer
    x = 61,170.57

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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.