Home / 198,412.43-273,650.72-130,499.12

Finding the Fourth Proportional to 198,412.43, 273,650.72 and 130,499.12

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Solution

The fourth proportional to 198,412.43, 273,650.72 and 130,499.12 is: 179,984.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,412.43 : 273,650.72 = 130,499.12 : x
  2. Step 2: Convert to fraction form
    198,412.43/273,650.72 = 130,499.12/x
  3. Step 3: Cross multiply
    198,412.43x = 273,650.72 × 130,499.12
  4. Step 4: Simplify right side
    198,412.43x = 35,711,176,126.62
  5. Step 5: Solve for x
    x = 35,711,176,126.62/198,412.43
  6. Step 6: Final answer
    x = 179,984.58

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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.