Home / 129,100.60-193,553.70-54,159.40

Finding the Fourth Proportional to 129,100.60, 193,553.70 and 54,159.40

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Solution

The fourth proportional to 129,100.60, 193,553.70 and 54,159.40 is: 81,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,100.60 : 193,553.70 = 54,159.40 : x
  2. Step 2: Convert to fraction form
    129,100.60/193,553.70 = 54,159.40/x
  3. Step 3: Cross multiply
    129,100.60x = 193,553.70 × 54,159.40
  4. Step 4: Simplify right side
    129,100.60x = 10,482,752,259.78
  5. Step 5: Solve for x
    x = 10,482,752,259.78/129,100.60
  6. Step 6: Final answer
    x = 81,198.32

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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.