Home / 185,431.05-278,146.58-45,190.89

Finding the Fourth Proportional to 185,431.05, 278,146.58 and 45,190.89

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Solution

The fourth proportional to 185,431.05, 278,146.58 and 45,190.89 is: 67,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,431.05 : 278,146.58 = 45,190.89 : x
  2. Step 2: Convert to fraction form
    185,431.05/278,146.58 = 45,190.89/x
  3. Step 3: Cross multiply
    185,431.05x = 278,146.58 × 45,190.89
  4. Step 4: Simplify right side
    185,431.05x = 12,569,691,274.70
  5. Step 5: Solve for x
    x = 12,569,691,274.70/185,431.05
  6. Step 6: Final answer
    x = 67,786.34

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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.