Home / 108,743.90-162,921.45-88,915.10

Finding the Fourth Proportional to 108,743.90, 162,921.45 and 88,915.10

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Solution

The fourth proportional to 108,743.90, 162,921.45 and 88,915.10 is: 133,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,743.90 : 162,921.45 = 88,915.10 : x
  2. Step 2: Convert to fraction form
    108,743.90/162,921.45 = 88,915.10/x
  3. Step 3: Cross multiply
    108,743.90x = 162,921.45 × 88,915.10
  4. Step 4: Simplify right side
    108,743.90x = 14,486,177,018.90
  5. Step 5: Solve for x
    x = 14,486,177,018.90/108,743.90
  6. Step 6: Final answer
    x = 133,213.70

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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.