Home / 151,132.09-208,618.43-129,825.85

Finding the Fourth Proportional to 151,132.09, 208,618.43 and 129,825.85

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Solution

The fourth proportional to 151,132.09, 208,618.43 and 129,825.85 is: 179,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,132.09 : 208,618.43 = 129,825.85 : x
  2. Step 2: Convert to fraction form
    151,132.09/208,618.43 = 129,825.85/x
  3. Step 3: Cross multiply
    151,132.09x = 208,618.43 × 129,825.85
  4. Step 4: Simplify right side
    151,132.09x = 27,084,065,000.42
  5. Step 5: Solve for x
    x = 27,084,065,000.42/151,132.09
  6. Step 6: Final answer
    x = 179,207.90

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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.