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Finding the Fourth Proportional to 129,637.70, 194,456.55 and 110,610.80

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Solution

The fourth proportional to 129,637.70, 194,456.55 and 110,610.80 is: 165,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,637.70 : 194,456.55 = 110,610.80 : x
  2. Step 2: Convert to fraction form
    129,637.70/194,456.55 = 110,610.80/x
  3. Step 3: Cross multiply
    129,637.70x = 194,456.55 × 110,610.80
  4. Step 4: Simplify right side
    129,637.70x = 21,508,994,560.74
  5. Step 5: Solve for x
    x = 21,508,994,560.74/129,637.70
  6. Step 6: Final answer
    x = 165,916.20

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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.