Home / 98,445.66-147,636.09-54,122.46

Finding the Fourth Proportional to 98,445.66, 147,636.09 and 54,122.46

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Solution

The fourth proportional to 98,445.66, 147,636.09 and 54,122.46 is: 81,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,445.66 : 147,636.09 = 54,122.46 : x
  2. Step 2: Convert to fraction form
    98,445.66/147,636.09 = 54,122.46/x
  3. Step 3: Cross multiply
    98,445.66x = 147,636.09 × 54,122.46
  4. Step 4: Simplify right side
    98,445.66x = 7,990,428,375.58
  5. Step 5: Solve for x
    x = 7,990,428,375.58/98,445.66
  6. Step 6: Final answer
    x = 81,165.88

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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.