Home / 108,423.20-162,505.20-55,805.60

Finding the Fourth Proportional to 108,423.20, 162,505.20 and 55,805.60

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Solution

The fourth proportional to 108,423.20, 162,505.20 and 55,805.60 is: 83,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,423.20 : 162,505.20 = 55,805.60 : x
  2. Step 2: Convert to fraction form
    108,423.20/162,505.20 = 55,805.60/x
  3. Step 3: Cross multiply
    108,423.20x = 162,505.20 × 55,805.60
  4. Step 4: Simplify right side
    108,423.20x = 9,068,700,189.12
  5. Step 5: Solve for x
    x = 9,068,700,189.12/108,423.20
  6. Step 6: Final answer
    x = 83,641.69

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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.