Home / 149,704.20-206,574.30-89,278.20

Finding the Fourth Proportional to 149,704.20, 206,574.30 and 89,278.20

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Solution

The fourth proportional to 149,704.20, 206,574.30 and 89,278.20 is: 123,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,704.20 : 206,574.30 = 89,278.20 : x
  2. Step 2: Convert to fraction form
    149,704.20/206,574.30 = 89,278.20/x
  3. Step 3: Cross multiply
    149,704.20x = 206,574.30 × 89,278.20
  4. Step 4: Simplify right side
    149,704.20x = 18,442,581,670.26
  5. Step 5: Solve for x
    x = 18,442,581,670.26/149,704.20
  6. Step 6: Final answer
    x = 123,193.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.