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Finding the Fourth Proportional to 108,001.90, 162,002.85 and 68,733.10

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Solution

The fourth proportional to 108,001.90, 162,002.85 and 68,733.10 is: 103,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,001.90 : 162,002.85 = 68,733.10 : x
  2. Step 2: Convert to fraction form
    108,001.90/162,002.85 = 68,733.10/x
  3. Step 3: Cross multiply
    108,001.90x = 162,002.85 × 68,733.10
  4. Step 4: Simplify right side
    108,001.90x = 11,134,958,089.34
  5. Step 5: Solve for x
    x = 11,134,958,089.34/108,001.90
  6. Step 6: Final answer
    x = 103,099.65

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Similar ratio
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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.