Home / 108,545.40-162,857.97-45,371.88

Finding the Fourth Proportional to 108,545.40, 162,857.97 and 45,371.88

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Solution

The fourth proportional to 108,545.40, 162,857.97 and 45,371.88 is: 68,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,545.40 : 162,857.97 = 45,371.88 : x
  2. Step 2: Convert to fraction form
    108,545.40/162,857.97 = 45,371.88/x
  3. Step 3: Cross multiply
    108,545.40x = 162,857.97 × 45,371.88
  4. Step 4: Simplify right side
    108,545.40x = 7,389,172,271.88
  5. Step 5: Solve for x
    x = 7,389,172,271.88/108,545.40
  6. Step 6: Final answer
    x = 68,074.49

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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.