Home / 129,318.53-193,929.39-45,057.06

Finding the Fourth Proportional to 129,318.53, 193,929.39 and 45,057.06

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Solution

The fourth proportional to 129,318.53, 193,929.39 and 45,057.06 is: 67,568.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,318.53 : 193,929.39 = 45,057.06 : x
  2. Step 2: Convert to fraction form
    129,318.53/193,929.39 = 45,057.06/x
  3. Step 3: Cross multiply
    129,318.53x = 193,929.39 × 45,057.06
  4. Step 4: Simplify right side
    129,318.53x = 8,737,888,160.99
  5. Step 5: Solve for x
    x = 8,737,888,160.99/129,318.53
  6. Step 6: Final answer
    x = 67,568.73

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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.