Home / 108,340.90-162,531.68-49,180.72

Finding the Fourth Proportional to 108,340.90, 162,531.68 and 49,180.72

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Solution

The fourth proportional to 108,340.90, 162,531.68 and 49,180.72 is: 73,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,340.90 : 162,531.68 = 49,180.72 : x
  2. Step 2: Convert to fraction form
    108,340.90/162,531.68 = 49,180.72/x
  3. Step 3: Cross multiply
    108,340.90x = 162,531.68 × 49,180.72
  4. Step 4: Simplify right side
    108,340.90x = 7,993,425,045.21
  5. Step 5: Solve for x
    x = 7,993,425,045.21/108,340.90
  6. Step 6: Final answer
    x = 73,780.31

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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.