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Finding the Fourth Proportional to 108,099.78, 162,149.70 and 55,475.70

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Solution

The fourth proportional to 108,099.78, 162,149.70 and 55,475.70 is: 83,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,099.78 : 162,149.70 = 55,475.70 : x
  2. Step 2: Convert to fraction form
    108,099.78/162,149.70 = 55,475.70/x
  3. Step 3: Cross multiply
    108,099.78x = 162,149.70 × 55,475.70
  4. Step 4: Simplify right side
    108,099.78x = 8,995,368,112.29
  5. Step 5: Solve for x
    x = 8,995,368,112.29/108,099.78
  6. Step 6: Final answer
    x = 83,213.57

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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.