Home / 108,548.40-162,542.18-74,918.22

Finding the Fourth Proportional to 108,548.40, 162,542.18 and 74,918.22

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Solution

The fourth proportional to 108,548.40, 162,542.18 and 74,918.22 is: 112,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,548.40 : 162,542.18 = 74,918.22 : x
  2. Step 2: Convert to fraction form
    108,548.40/162,542.18 = 74,918.22/x
  3. Step 3: Cross multiply
    108,548.40x = 162,542.18 × 74,918.22
  4. Step 4: Simplify right side
    108,548.40x = 12,177,370,800.52
  5. Step 5: Solve for x
    x = 12,177,370,800.52/108,548.40
  6. Step 6: Final answer
    x = 112,183.79

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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.