Home / 149,605.28-206,454.30-85,074.52

Finding the Fourth Proportional to 149,605.28, 206,454.30 and 85,074.52

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Solution

The fourth proportional to 149,605.28, 206,454.30 and 85,074.52 is: 117,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,605.28 : 206,454.30 = 85,074.52 : x
  2. Step 2: Convert to fraction form
    149,605.28/206,454.30 = 85,074.52/x
  3. Step 3: Cross multiply
    149,605.28x = 206,454.30 × 85,074.52
  4. Step 4: Simplify right side
    149,605.28x = 17,564,000,474.44
  5. Step 5: Solve for x
    x = 17,564,000,474.44/149,605.28
  6. Step 6: Final answer
    x = 117,402.28

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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.