Home / 129,829.73-194,831.87-45,590.54

Finding the Fourth Proportional to 129,829.73, 194,831.87 and 45,590.54

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Solution

The fourth proportional to 129,829.73, 194,831.87 and 45,590.54 is: 68,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,829.73 : 194,831.87 = 45,590.54 : x
  2. Step 2: Convert to fraction form
    129,829.73/194,831.87 = 45,590.54/x
  3. Step 3: Cross multiply
    129,829.73x = 194,831.87 × 45,590.54
  4. Step 4: Simplify right side
    129,829.73x = 8,882,488,960.40
  5. Step 5: Solve for x
    x = 8,882,488,960.40/129,829.73
  6. Step 6: Final answer
    x = 68,416.45

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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.