Home / 108,712.40-162,995.70-49,517.60

Finding the Fourth Proportional to 108,712.40, 162,995.70 and 49,517.60

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Solution

The fourth proportional to 108,712.40, 162,995.70 and 49,517.60 is: 74,243.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,712.40 : 162,995.70 = 49,517.60 : x
  2. Step 2: Convert to fraction form
    108,712.40/162,995.70 = 49,517.60/x
  3. Step 3: Cross multiply
    108,712.40x = 162,995.70 × 49,517.60
  4. Step 4: Simplify right side
    108,712.40x = 8,071,155,874.32
  5. Step 5: Solve for x
    x = 8,071,155,874.32/108,712.40
  6. Step 6: Final answer
    x = 74,243.19

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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.