Home / 140,387.72-193,747.54-79,945.16

Finding the Fourth Proportional to 140,387.72, 193,747.54 and 79,945.16

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Solution

The fourth proportional to 140,387.72, 193,747.54 and 79,945.16 is: 110,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,387.72 : 193,747.54 = 79,945.16 : x
  2. Step 2: Convert to fraction form
    140,387.72/193,747.54 = 79,945.16/x
  3. Step 3: Cross multiply
    140,387.72x = 193,747.54 × 79,945.16
  4. Step 4: Simplify right side
    140,387.72x = 15,489,178,084.91
  5. Step 5: Solve for x
    x = 15,489,178,084.91/140,387.72
  6. Step 6: Final answer
    x = 110,331.43

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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.