Home / 127,743.30-176,291.22-71,154.72

Finding the Fourth Proportional to 127,743.30, 176,291.22 and 71,154.72

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Solution

The fourth proportional to 127,743.30, 176,291.22 and 71,154.72 is: 98,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,743.30 : 176,291.22 = 71,154.72 : x
  2. Step 2: Convert to fraction form
    127,743.30/176,291.22 = 71,154.72/x
  3. Step 3: Cross multiply
    127,743.30x = 176,291.22 × 71,154.72
  4. Step 4: Simplify right side
    127,743.30x = 12,543,952,397.56
  5. Step 5: Solve for x
    x = 12,543,952,397.56/127,743.30
  6. Step 6: Final answer
    x = 98,196.56

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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.