Home / 108,049.20-161,976.60-70,627.20

Finding the Fourth Proportional to 108,049.20, 161,976.60 and 70,627.20

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Solution

The fourth proportional to 108,049.20, 161,976.60 and 70,627.20 is: 105,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,049.20 : 161,976.60 = 70,627.20 : x
  2. Step 2: Convert to fraction form
    108,049.20/161,976.60 = 70,627.20/x
  3. Step 3: Cross multiply
    108,049.20x = 161,976.60 × 70,627.20
  4. Step 4: Simplify right side
    108,049.20x = 11,439,953,723.52
  5. Step 5: Solve for x
    x = 11,439,953,723.52/108,049.20
  6. Step 6: Final answer
    x = 105,877.26

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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.