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Finding the Fourth Proportional to 136,774.41, 188,780.09 and 88,944.45

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Solution

The fourth proportional to 136,774.41, 188,780.09 and 88,944.45 is: 122,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,774.41 : 188,780.09 = 88,944.45 : x
  2. Step 2: Convert to fraction form
    136,774.41/188,780.09 = 88,944.45/x
  3. Step 3: Cross multiply
    136,774.41x = 188,780.09 × 88,944.45
  4. Step 4: Simplify right side
    136,774.41x = 16,790,940,554.46
  5. Step 5: Solve for x
    x = 16,790,940,554.46/136,774.41
  6. Step 6: Final answer
    x = 122,763.76

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1.5x scale

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.