Home / 129,736.40-194,590.20-36,251.60

Finding the Fourth Proportional to 129,736.40, 194,590.20 and 36,251.60

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Solution

The fourth proportional to 129,736.40, 194,590.20 and 36,251.60 is: 54,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,736.40 : 194,590.20 = 36,251.60 : x
  2. Step 2: Convert to fraction form
    129,736.40/194,590.20 = 36,251.60/x
  3. Step 3: Cross multiply
    129,736.40x = 194,590.20 × 36,251.60
  4. Step 4: Simplify right side
    129,736.40x = 7,054,206,094.32
  5. Step 5: Solve for x
    x = 7,054,206,094.32/129,736.40
  6. Step 6: Final answer
    x = 54,373.38

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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.