Home / 127,957.44-176,759.82-121,231.20

Finding the Fourth Proportional to 127,957.44, 176,759.82 and 121,231.20

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Solution

The fourth proportional to 127,957.44, 176,759.82 and 121,231.20 is: 167,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,957.44 : 176,759.82 = 121,231.20 : x
  2. Step 2: Convert to fraction form
    127,957.44/176,759.82 = 121,231.20/x
  3. Step 3: Cross multiply
    127,957.44x = 176,759.82 × 121,231.20
  4. Step 4: Simplify right side
    127,957.44x = 21,428,805,090.38
  5. Step 5: Solve for x
    x = 21,428,805,090.38/127,957.44
  6. Step 6: Final answer
    x = 167,468.22

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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.