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Finding the Fourth Proportional to 136,536.96, 188,456.64 and 88,920.96

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Solution

The fourth proportional to 136,536.96, 188,456.64 and 88,920.96 is: 122,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,536.96 : 188,456.64 = 88,920.96 : x
  2. Step 2: Convert to fraction form
    136,536.96/188,456.64 = 88,920.96/x
  3. Step 3: Cross multiply
    136,536.96x = 188,456.64 × 88,920.96
  4. Step 4: Simplify right side
    136,536.96x = 16,757,745,347.17
  5. Step 5: Solve for x
    x = 16,757,745,347.17/136,536.96
  6. Step 6: Final answer
    x = 122,734.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.