Home / 108,861.24-150,189.84-71,157.36

Finding the Fourth Proportional to 108,861.24, 150,189.84 and 71,157.36

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Solution

The fourth proportional to 108,861.24, 150,189.84 and 71,157.36 is: 98,171.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,861.24 : 150,189.84 = 71,157.36 : x
  2. Step 2: Convert to fraction form
    108,861.24/150,189.84 = 71,157.36/x
  3. Step 3: Cross multiply
    108,861.24x = 150,189.84 × 71,157.36
  4. Step 4: Simplify right side
    108,861.24x = 10,687,112,513.22
  5. Step 5: Solve for x
    x = 10,687,112,513.22/108,861.24
  6. Step 6: Final answer
    x = 98,171.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.