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Finding the Fourth Proportional to 108,108.84, 162,171.90 and 38,003.88

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Solution

The fourth proportional to 108,108.84, 162,171.90 and 38,003.88 is: 57,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,108.84 : 162,171.90 = 38,003.88 : x
  2. Step 2: Convert to fraction form
    108,108.84/162,171.90 = 38,003.88/x
  3. Step 3: Cross multiply
    108,108.84x = 162,171.90 × 38,003.88
  4. Step 4: Simplify right side
    108,108.84x = 6,163,161,426.97
  5. Step 5: Solve for x
    x = 6,163,161,426.97/108,108.84
  6. Step 6: Final answer
    x = 57,008.86

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1.5x scale

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.