Home / 149,712.73-206,583.96-89,290.47

Finding the Fourth Proportional to 149,712.73, 206,583.96 and 89,290.47

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Solution

The fourth proportional to 149,712.73, 206,583.96 and 89,290.47 is: 123,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,712.73 : 206,583.96 = 89,290.47 : x
  2. Step 2: Convert to fraction form
    149,712.73/206,583.96 = 89,290.47/x
  3. Step 3: Cross multiply
    149,712.73x = 206,583.96 × 89,290.47
  4. Step 4: Simplify right side
    149,712.73x = 18,445,978,882.86
  5. Step 5: Solve for x
    x = 18,445,978,882.86/149,712.73
  6. Step 6: Final answer
    x = 123,209.15

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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.