Home / 108,742.96-162,934.35-76,996.27

Finding the Fourth Proportional to 108,742.96, 162,934.35 and 76,996.27

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Solution

The fourth proportional to 108,742.96, 162,934.35 and 76,996.27 is: 115,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,742.96 : 162,934.35 = 76,996.27 : x
  2. Step 2: Convert to fraction form
    108,742.96/162,934.35 = 76,996.27/x
  3. Step 3: Cross multiply
    108,742.96x = 162,934.35 × 76,996.27
  4. Step 4: Simplify right side
    108,742.96x = 12,545,337,204.87
  5. Step 5: Solve for x
    x = 12,545,337,204.87/108,742.96
  6. Step 6: Final answer
    x = 115,366.89

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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.