Home / 135,831.26-187,437.76-75,397.15

Finding the Fourth Proportional to 135,831.26, 187,437.76 and 75,397.15

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Solution

The fourth proportional to 135,831.26, 187,437.76 and 75,397.15 is: 104,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,831.26 : 187,437.76 = 75,397.15 : x
  2. Step 2: Convert to fraction form
    135,831.26/187,437.76 = 75,397.15/x
  3. Step 3: Cross multiply
    135,831.26x = 187,437.76 × 75,397.15
  4. Step 4: Simplify right side
    135,831.26x = 14,132,272,906.38
  5. Step 5: Solve for x
    x = 14,132,272,906.38/135,831.26
  6. Step 6: Final answer
    x = 104,042.86

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1.5x scale

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.