Home / 127,710.38-176,227.71-71,127.02

Finding the Fourth Proportional to 127,710.38, 176,227.71 and 71,127.02

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Solution

The fourth proportional to 127,710.38, 176,227.71 and 71,127.02 is: 98,148.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,710.38 : 176,227.71 = 71,127.02 : x
  2. Step 2: Convert to fraction form
    127,710.38/176,227.71 = 71,127.02/x
  3. Step 3: Cross multiply
    127,710.38x = 176,227.71 × 71,127.02
  4. Step 4: Simplify right side
    127,710.38x = 12,534,551,853.72
  5. Step 5: Solve for x
    x = 12,534,551,853.72/127,710.38
  6. Step 6: Final answer
    x = 98,148.26

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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.