Home / 127,865.64-176,456.82-71,270.88

Finding the Fourth Proportional to 127,865.64, 176,456.82 and 71,270.88

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Solution

The fourth proportional to 127,865.64, 176,456.82 and 71,270.88 is: 98,355.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,865.64 : 176,456.82 = 71,270.88 : x
  2. Step 2: Convert to fraction form
    127,865.64/176,456.82 = 71,270.88/x
  3. Step 3: Cross multiply
    127,865.64x = 176,456.82 × 71,270.88
  4. Step 4: Simplify right side
    127,865.64x = 12,576,232,843.40
  5. Step 5: Solve for x
    x = 12,576,232,843.40/127,865.64
  6. Step 6: Final answer
    x = 98,355.06

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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.