Home / 108,489.20-162,759.78-45,274.16

Finding the Fourth Proportional to 108,489.20, 162,759.78 and 45,274.16

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Solution

The fourth proportional to 108,489.20, 162,759.78 and 45,274.16 is: 67,922.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,489.20 : 162,759.78 = 45,274.16 : x
  2. Step 2: Convert to fraction form
    108,489.20/162,759.78 = 45,274.16/x
  3. Step 3: Cross multiply
    108,489.20x = 162,759.78 × 45,274.16
  4. Step 4: Simplify right side
    108,489.20x = 7,368,812,321.28
  5. Step 5: Solve for x
    x = 7,368,812,321.28/108,489.20
  6. Step 6: Final answer
    x = 67,922.08

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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.