Home / 149,696.28-206,575.68-89,235.75

Finding the Fourth Proportional to 149,696.28, 206,575.68 and 89,235.75

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Solution

The fourth proportional to 149,696.28, 206,575.68 and 89,235.75 is: 123,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,696.28 : 206,575.68 = 89,235.75 : x
  2. Step 2: Convert to fraction form
    149,696.28/206,575.68 = 89,235.75/x
  3. Step 3: Cross multiply
    149,696.28x = 206,575.68 × 89,235.75
  4. Step 4: Simplify right side
    149,696.28x = 18,433,935,736.56
  5. Step 5: Solve for x
    x = 18,433,935,736.56/149,696.28
  6. Step 6: Final answer
    x = 123,142.24

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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.