Home / 129,610.63-194,492.49-54,725.93

Finding the Fourth Proportional to 129,610.63, 194,492.49 and 54,725.93

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Solution

The fourth proportional to 129,610.63, 194,492.49 and 54,725.93 is: 82,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,610.63 : 194,492.49 = 54,725.93 : x
  2. Step 2: Convert to fraction form
    129,610.63/194,492.49 = 54,725.93/x
  3. Step 3: Cross multiply
    129,610.63x = 194,492.49 × 54,725.93
  4. Step 4: Simplify right side
    129,610.63x = 10,643,781,147.17
  5. Step 5: Solve for x
    x = 10,643,781,147.17/129,610.63
  6. Step 6: Final answer
    x = 82,121.21

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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.