Home / 129,858.30-194,787.45-123,734.70

Finding the Fourth Proportional to 129,858.30, 194,787.45 and 123,734.70

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Solution

The fourth proportional to 129,858.30, 194,787.45 and 123,734.70 is: 185,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,858.30 : 194,787.45 = 123,734.70 : x
  2. Step 2: Convert to fraction form
    129,858.30/194,787.45 = 123,734.70/x
  3. Step 3: Cross multiply
    129,858.30x = 194,787.45 × 123,734.70
  4. Step 4: Simplify right side
    129,858.30x = 24,101,966,689.52
  5. Step 5: Solve for x
    x = 24,101,966,689.52/129,858.30
  6. Step 6: Final answer
    x = 185,602.05

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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.