Home / 109,167.30-150,570.21-75,186.54

Finding the Fourth Proportional to 109,167.30, 150,570.21 and 75,186.54

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Solution

The fourth proportional to 109,167.30, 150,570.21 and 75,186.54 is: 103,701.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,167.30 : 150,570.21 = 75,186.54 : x
  2. Step 2: Convert to fraction form
    109,167.30/150,570.21 = 75,186.54/x
  3. Step 3: Cross multiply
    109,167.30x = 150,570.21 × 75,186.54
  4. Step 4: Simplify right side
    109,167.30x = 11,320,853,116.97
  5. Step 5: Solve for x
    x = 11,320,853,116.97/109,167.30
  6. Step 6: Final answer
    x = 103,701.87

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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.