Home / 134,979.72-186,273.42-74,551.92

Finding the Fourth Proportional to 134,979.72, 186,273.42 and 74,551.92

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Solution

The fourth proportional to 134,979.72, 186,273.42 and 74,551.92 is: 102,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,979.72 : 186,273.42 = 74,551.92 : x
  2. Step 2: Convert to fraction form
    134,979.72/186,273.42 = 74,551.92/x
  3. Step 3: Cross multiply
    134,979.72x = 186,273.42 × 74,551.92
  4. Step 4: Simplify right side
    134,979.72x = 13,887,041,105.97
  5. Step 5: Solve for x
    x = 13,887,041,105.97/134,979.72
  6. Step 6: Final answer
    x = 102,882.43

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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.