Home / 108,529.20-162,534.60-66,538.80

Finding the Fourth Proportional to 108,529.20, 162,534.60 and 66,538.80

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Solution

The fourth proportional to 108,529.20, 162,534.60 and 66,538.80 is: 99,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,529.20 : 162,534.60 = 66,538.80 : x
  2. Step 2: Convert to fraction form
    108,529.20/162,534.60 = 66,538.80/x
  3. Step 3: Cross multiply
    108,529.20x = 162,534.60 × 66,538.80
  4. Step 4: Simplify right side
    108,529.20x = 10,814,857,242.48
  5. Step 5: Solve for x
    x = 10,814,857,242.48/108,529.20
  6. Step 6: Final answer
    x = 99,649.29

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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.