Home / 129,146.75-193,728.32-34,375.38

Finding the Fourth Proportional to 129,146.75, 193,728.32 and 34,375.38

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Solution

The fourth proportional to 129,146.75, 193,728.32 and 34,375.38 is: 51,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,146.75 : 193,728.32 = 34,375.38 : x
  2. Step 2: Convert to fraction form
    129,146.75/193,728.32 = 34,375.38/x
  3. Step 3: Cross multiply
    129,146.75x = 193,728.32 × 34,375.38
  4. Step 4: Simplify right side
    129,146.75x = 6,659,484,702.70
  5. Step 5: Solve for x
    x = 6,659,484,702.70/129,146.75
  6. Step 6: Final answer
    x = 51,565.25

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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.