Home / 108,173.88-149,311.44-62,872.20

Finding the Fourth Proportional to 108,173.88, 149,311.44 and 62,872.20

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Solution

The fourth proportional to 108,173.88, 149,311.44 and 62,872.20 is: 86,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,173.88 : 149,311.44 = 62,872.20 : x
  2. Step 2: Convert to fraction form
    108,173.88/149,311.44 = 62,872.20/x
  3. Step 3: Cross multiply
    108,173.88x = 149,311.44 × 62,872.20
  4. Step 4: Simplify right side
    108,173.88x = 9,387,538,717.97
  5. Step 5: Solve for x
    x = 9,387,538,717.97/108,173.88
  6. Step 6: Final answer
    x = 86,781.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.