Home / 141,760.95-195,638.94-78,098.73

Finding the Fourth Proportional to 141,760.95, 195,638.94 and 78,098.73

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Solution

The fourth proportional to 141,760.95, 195,638.94 and 78,098.73 is: 107,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,760.95 : 195,638.94 = 78,098.73 : x
  2. Step 2: Convert to fraction form
    141,760.95/195,638.94 = 78,098.73/x
  3. Step 3: Cross multiply
    141,760.95x = 195,638.94 × 78,098.73
  4. Step 4: Simplify right side
    141,760.95x = 15,279,152,752.55
  5. Step 5: Solve for x
    x = 15,279,152,752.55/141,760.95
  6. Step 6: Final answer
    x = 107,781.11

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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.