Home / 135,691.24-187,265.40-75,281.32

Finding the Fourth Proportional to 135,691.24, 187,265.40 and 75,281.32

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Solution

The fourth proportional to 135,691.24, 187,265.40 and 75,281.32 is: 103,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,691.24 : 187,265.40 = 75,281.32 : x
  2. Step 2: Convert to fraction form
    135,691.24/187,265.40 = 75,281.32/x
  3. Step 3: Cross multiply
    135,691.24x = 187,265.40 × 75,281.32
  4. Step 4: Simplify right side
    135,691.24x = 14,097,586,502.33
  5. Step 5: Solve for x
    x = 14,097,586,502.33/135,691.24
  6. Step 6: Final answer
    x = 103,894.60

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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.