Home / 138,528.24-208,167.52-75,395.04

Finding the Fourth Proportional to 138,528.24, 208,167.52 and 75,395.04

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Solution

The fourth proportional to 138,528.24, 208,167.52 and 75,395.04 is: 113,296.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,528.24 : 208,167.52 = 75,395.04 : x
  2. Step 2: Convert to fraction form
    138,528.24/208,167.52 = 75,395.04/x
  3. Step 3: Cross multiply
    138,528.24x = 208,167.52 × 75,395.04
  4. Step 4: Simplify right side
    138,528.24x = 15,694,798,497.10
  5. Step 5: Solve for x
    x = 15,694,798,497.10/138,528.24
  6. Step 6: Final answer
    x = 113,296.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.