Home / 136,043.94-187,311.82-123,432.58

Finding the Fourth Proportional to 136,043.94, 187,311.82 and 123,432.58

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Solution

The fourth proportional to 136,043.94, 187,311.82 and 123,432.58 is: 169,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,043.94 : 187,311.82 = 123,432.58 : x
  2. Step 2: Convert to fraction form
    136,043.94/187,311.82 = 123,432.58/x
  3. Step 3: Cross multiply
    136,043.94x = 187,311.82 × 123,432.58
  4. Step 4: Simplify right side
    136,043.94x = 23,120,381,207.10
  5. Step 5: Solve for x
    x = 23,120,381,207.10/136,043.94
  6. Step 6: Final answer
    x = 169,947.89

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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.