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Finding the Fourth Proportional to 136,774.88, 188,745.92 and 88,937.92

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Solution

The fourth proportional to 136,774.88, 188,745.92 and 88,937.92 is: 122,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,774.88 : 188,745.92 = 88,937.92 : x
  2. Step 2: Convert to fraction form
    136,774.88/188,745.92 = 88,937.92/x
  3. Step 3: Cross multiply
    136,774.88x = 188,745.92 × 88,937.92
  4. Step 4: Simplify right side
    136,774.88x = 16,786,669,533.29
  5. Step 5: Solve for x
    x = 16,786,669,533.29/136,774.88
  6. Step 6: Final answer
    x = 122,732.11

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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.