Home / 129,364.82-193,831.91-45,078.53

Finding the Fourth Proportional to 129,364.82, 193,831.91 and 45,078.53

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Solution

The fourth proportional to 129,364.82, 193,831.91 and 45,078.53 is: 67,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,364.82 : 193,831.91 = 45,078.53 : x
  2. Step 2: Convert to fraction form
    129,364.82/193,831.91 = 45,078.53/x
  3. Step 3: Cross multiply
    129,364.82x = 193,831.91 × 45,078.53
  4. Step 4: Simplify right side
    129,364.82x = 8,737,656,713.43
  5. Step 5: Solve for x
    x = 8,737,656,713.43/129,364.82
  6. Step 6: Final answer
    x = 67,542.76

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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.