Home / 129,280.75-193,932.47-35,787.31

Finding the Fourth Proportional to 129,280.75, 193,932.47 and 35,787.31

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Solution

The fourth proportional to 129,280.75, 193,932.47 and 35,787.31 is: 53,684.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,280.75 : 193,932.47 = 35,787.31 : x
  2. Step 2: Convert to fraction form
    129,280.75/193,932.47 = 35,787.31/x
  3. Step 3: Cross multiply
    129,280.75x = 193,932.47 × 35,787.31
  4. Step 4: Simplify right side
    129,280.75x = 6,940,321,422.96
  5. Step 5: Solve for x
    x = 6,940,321,422.96/129,280.75
  6. Step 6: Final answer
    x = 53,684.11

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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.