Home / 108,122.40-162,093.96-66,481.92

Finding the Fourth Proportional to 108,122.40, 162,093.96 and 66,481.92

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Solution

The fourth proportional to 108,122.40, 162,093.96 and 66,481.92 is: 99,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,122.40 : 162,093.96 = 66,481.92 : x
  2. Step 2: Convert to fraction form
    108,122.40/162,093.96 = 66,481.92/x
  3. Step 3: Cross multiply
    108,122.40x = 162,093.96 × 66,481.92
  4. Step 4: Simplify right side
    108,122.40x = 10,776,317,681.20
  5. Step 5: Solve for x
    x = 10,776,317,681.20/108,122.40
  6. Step 6: Final answer
    x = 99,667.76

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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.