Home / 100,872.30-151,178.85-41,748.78

Finding the Fourth Proportional to 100,872.30, 151,178.85 and 41,748.78

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Solution

The fourth proportional to 100,872.30, 151,178.85 and 41,748.78 is: 62,569.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,872.30 : 151,178.85 = 41,748.78 : x
  2. Step 2: Convert to fraction form
    100,872.30/151,178.85 = 41,748.78/x
  3. Step 3: Cross multiply
    100,872.30x = 151,178.85 × 41,748.78
  4. Step 4: Simplify right side
    100,872.30x = 6,311,532,549.30
  5. Step 5: Solve for x
    x = 6,311,532,549.30/100,872.30
  6. Step 6: Final answer
    x = 62,569.53

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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.