Home / 108,418.27-162,539.75-45,286.76

Finding the Fourth Proportional to 108,418.27, 162,539.75 and 45,286.76

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Solution

The fourth proportional to 108,418.27, 162,539.75 and 45,286.76 is: 67,893.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,418.27 : 162,539.75 = 45,286.76 : x
  2. Step 2: Convert to fraction form
    108,418.27/162,539.75 = 45,286.76/x
  3. Step 3: Cross multiply
    108,418.27x = 162,539.75 × 45,286.76
  4. Step 4: Simplify right side
    108,418.27x = 7,360,897,609.58
  5. Step 5: Solve for x
    x = 7,360,897,609.58/108,418.27
  6. Step 6: Final answer
    x = 67,893.52

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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.