Home / 135,680.27-187,239.20-75,256.52

Finding the Fourth Proportional to 135,680.27, 187,239.20 and 75,256.52

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Solution

The fourth proportional to 135,680.27, 187,239.20 and 75,256.52 is: 103,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,680.27 : 187,239.20 = 75,256.52 : x
  2. Step 2: Convert to fraction form
    135,680.27/187,239.20 = 75,256.52/x
  3. Step 3: Cross multiply
    135,680.27x = 187,239.20 × 75,256.52
  4. Step 4: Simplify right side
    135,680.27x = 14,090,969,287.11
  5. Step 5: Solve for x
    x = 14,090,969,287.11/135,680.27
  6. Step 6: Final answer
    x = 103,854.23

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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.