Home / 127,849.62-176,432.67-71,259.78

Finding the Fourth Proportional to 127,849.62, 176,432.67 and 71,259.78

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Solution

The fourth proportional to 127,849.62, 176,432.67 and 71,259.78 is: 98,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,849.62 : 176,432.67 = 71,259.78 : x
  2. Step 2: Convert to fraction form
    127,849.62/176,432.67 = 71,259.78/x
  3. Step 3: Cross multiply
    127,849.62x = 176,432.67 × 71,259.78
  4. Step 4: Simplify right side
    127,849.62x = 12,572,553,249.01
  5. Step 5: Solve for x
    x = 12,572,553,249.01/127,849.62
  6. Step 6: Final answer
    x = 98,338.60

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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.