Home / 98,734.44-147,757.14-80,757.30

Finding the Fourth Proportional to 98,734.44, 147,757.14 and 80,757.30

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Solution

The fourth proportional to 98,734.44, 147,757.14 and 80,757.30 is: 120,854.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,734.44 : 147,757.14 = 80,757.30 : x
  2. Step 2: Convert to fraction form
    98,734.44/147,757.14 = 80,757.30/x
  3. Step 3: Cross multiply
    98,734.44x = 147,757.14 × 80,757.30
  4. Step 4: Simplify right side
    98,734.44x = 11,932,467,682.12
  5. Step 5: Solve for x
    x = 11,932,467,682.12/98,734.44
  6. Step 6: Final answer
    x = 120,854.16

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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.