Home / 108,575.20-162,765.60-71,153.20

Finding the Fourth Proportional to 108,575.20, 162,765.60 and 71,153.20

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Solution

The fourth proportional to 108,575.20, 162,765.60 and 71,153.20 is: 106,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,575.20 : 162,765.60 = 71,153.20 : x
  2. Step 2: Convert to fraction form
    108,575.20/162,765.60 = 71,153.20/x
  3. Step 3: Cross multiply
    108,575.20x = 162,765.60 × 71,153.20
  4. Step 4: Simplify right side
    108,575.20x = 11,581,293,289.92
  5. Step 5: Solve for x
    x = 11,581,293,289.92/108,575.20
  6. Step 6: Final answer
    x = 106,666.10

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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.