Home / 281,193.38-421,790.07-123,423.20

Finding the Fourth Proportional to 281,193.38, 421,790.07 and 123,423.20

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Solution

The fourth proportional to 281,193.38, 421,790.07 and 123,423.20 is: 185,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,193.38 : 421,790.07 = 123,423.20 : x
  2. Step 2: Convert to fraction form
    281,193.38/421,790.07 = 123,423.20/x
  3. Step 3: Cross multiply
    281,193.38x = 421,790.07 × 123,423.20
  4. Step 4: Simplify right side
    281,193.38x = 52,058,680,167.62
  5. Step 5: Solve for x
    x = 52,058,680,167.62/281,193.38
  6. Step 6: Final answer
    x = 185,134.80

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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.