Home / 98,377.38-147,343.59-80,662.14

Finding the Fourth Proportional to 98,377.38, 147,343.59 and 80,662.14

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Solution

The fourth proportional to 98,377.38, 147,343.59 and 80,662.14 is: 120,810.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,377.38 : 147,343.59 = 80,662.14 : x
  2. Step 2: Convert to fraction form
    98,377.38/147,343.59 = 80,662.14/x
  3. Step 3: Cross multiply
    98,377.38x = 147,343.59 × 80,662.14
  4. Step 4: Simplify right side
    98,377.38x = 11,885,049,284.68
  5. Step 5: Solve for x
    x = 11,885,049,284.68/98,377.38
  6. Step 6: Final answer
    x = 120,810.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.