Home / 185,971.62-279,076.24-67,631.70

Finding the Fourth Proportional to 185,971.62, 279,076.24 and 67,631.70

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Solution

The fourth proportional to 185,971.62, 279,076.24 and 67,631.70 is: 101,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,971.62 : 279,076.24 = 67,631.70 : x
  2. Step 2: Convert to fraction form
    185,971.62/279,076.24 = 67,631.70/x
  3. Step 3: Cross multiply
    185,971.62x = 279,076.24 × 67,631.70
  4. Step 4: Simplify right side
    185,971.62x = 18,874,400,540.81
  5. Step 5: Solve for x
    x = 18,874,400,540.81/185,971.62
  6. Step 6: Final answer
    x = 101,490.76

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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.