Home / 147,882.78-203,839.15-115,561.23

Finding the Fourth Proportional to 147,882.78, 203,839.15 and 115,561.23

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Solution

The fourth proportional to 147,882.78, 203,839.15 and 115,561.23 is: 159,287.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,882.78 : 203,839.15 = 115,561.23 : x
  2. Step 2: Convert to fraction form
    147,882.78/203,839.15 = 115,561.23/x
  3. Step 3: Cross multiply
    147,882.78x = 203,839.15 × 115,561.23
  4. Step 4: Simplify right side
    147,882.78x = 23,555,902,059.53
  5. Step 5: Solve for x
    x = 23,555,902,059.53/147,882.78
  6. Step 6: Final answer
    x = 159,287.66

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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.