Home / 125,144.72-187,715.50-30,375.70

Finding the Fourth Proportional to 125,144.72, 187,715.50 and 30,375.70

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Solution

The fourth proportional to 125,144.72, 187,715.50 and 30,375.70 is: 45,563.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,144.72 : 187,715.50 = 30,375.70 : x
  2. Step 2: Convert to fraction form
    125,144.72/187,715.50 = 30,375.70/x
  3. Step 3: Cross multiply
    125,144.72x = 187,715.50 × 30,375.70
  4. Step 4: Simplify right side
    125,144.72x = 5,701,989,713.35
  5. Step 5: Solve for x
    x = 5,701,989,713.35/125,144.72
  6. Step 6: Final answer
    x = 45,563.17

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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.