Home / 136,261.11-188,049.17-75,831.57

Finding the Fourth Proportional to 136,261.11, 188,049.17 and 75,831.57

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Solution

The fourth proportional to 136,261.11, 188,049.17 and 75,831.57 is: 104,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,261.11 : 188,049.17 = 75,831.57 : x
  2. Step 2: Convert to fraction form
    136,261.11/188,049.17 = 75,831.57/x
  3. Step 3: Cross multiply
    136,261.11x = 188,049.17 × 75,831.57
  4. Step 4: Simplify right side
    136,261.11x = 14,260,063,798.30
  5. Step 5: Solve for x
    x = 14,260,063,798.30/136,261.11
  6. Step 6: Final answer
    x = 104,652.49

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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.