Home / 154,160.91-231,236.46-69,859.35

Finding the Fourth Proportional to 154,160.91, 231,236.46 and 69,859.35

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Solution

The fourth proportional to 154,160.91, 231,236.46 and 69,859.35 is: 104,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,160.91 : 231,236.46 = 69,859.35 : x
  2. Step 2: Convert to fraction form
    154,160.91/231,236.46 = 69,859.35/x
  3. Step 3: Cross multiply
    154,160.91x = 231,236.46 × 69,859.35
  4. Step 4: Simplify right side
    154,160.91x = 16,154,028,791.90
  5. Step 5: Solve for x
    x = 16,154,028,791.90/154,160.91
  6. Step 6: Final answer
    x = 104,786.80

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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.