Home / 154,003.50-231,097.41-66,451.50

Finding the Fourth Proportional to 154,003.50, 231,097.41 and 66,451.50

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Solution

The fourth proportional to 154,003.50, 231,097.41 and 66,451.50 is: 99,717.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,003.50 : 231,097.41 = 66,451.50 : x
  2. Step 2: Convert to fraction form
    154,003.50/231,097.41 = 66,451.50/x
  3. Step 3: Cross multiply
    154,003.50x = 231,097.41 × 66,451.50
  4. Step 4: Simplify right side
    154,003.50x = 15,356,769,540.62
  5. Step 5: Solve for x
    x = 15,356,769,540.62/154,003.50
  6. Step 6: Final answer
    x = 99,717.02

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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.