Home / 154,812.20-231,872.70-119,637.80

Finding the Fourth Proportional to 154,812.20, 231,872.70 and 119,637.80

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Solution

The fourth proportional to 154,812.20, 231,872.70 and 119,637.80 is: 179,189.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,812.20 : 231,872.70 = 119,637.80 : x
  2. Step 2: Convert to fraction form
    154,812.20/231,872.70 = 119,637.80/x
  3. Step 3: Cross multiply
    154,812.20x = 231,872.70 × 119,637.80
  4. Step 4: Simplify right side
    154,812.20x = 27,740,739,708.06
  5. Step 5: Solve for x
    x = 27,740,739,708.06/154,812.20
  6. Step 6: Final answer
    x = 179,189.62

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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.