Home / 195,691.36-269,934.64-129,387.52

Finding the Fourth Proportional to 195,691.36, 269,934.64 and 129,387.52

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Solution

The fourth proportional to 195,691.36, 269,934.64 and 129,387.52 is: 178,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,691.36 : 269,934.64 = 129,387.52 : x
  2. Step 2: Convert to fraction form
    195,691.36/269,934.64 = 129,387.52/x
  3. Step 3: Cross multiply
    195,691.36x = 269,934.64 × 129,387.52
  4. Step 4: Simplify right side
    195,691.36x = 34,926,173,631.69
  5. Step 5: Solve for x
    x = 34,926,173,631.69/195,691.36
  6. Step 6: Final answer
    x = 178,475.81

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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.