Home / 149,057.72-223,672.69-78,937.03

Finding the Fourth Proportional to 149,057.72, 223,672.69 and 78,937.03

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Solution

The fourth proportional to 149,057.72, 223,672.69 and 78,937.03 is: 118,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,057.72 : 223,672.69 = 78,937.03 : x
  2. Step 2: Convert to fraction form
    149,057.72/223,672.69 = 78,937.03/x
  3. Step 3: Cross multiply
    149,057.72x = 223,672.69 × 78,937.03
  4. Step 4: Simplify right side
    149,057.72x = 17,656,058,218.97
  5. Step 5: Solve for x
    x = 17,656,058,218.97/149,057.72
  6. Step 6: Final answer
    x = 118,451.15

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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.