Home / 154,823.20-231,889.20-127,175.20

Finding the Fourth Proportional to 154,823.20, 231,889.20 and 127,175.20

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Solution

The fourth proportional to 154,823.20, 231,889.20 and 127,175.20 is: 190,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,823.20 : 231,889.20 = 127,175.20 : x
  2. Step 2: Convert to fraction form
    154,823.20/231,889.20 = 127,175.20/x
  3. Step 3: Cross multiply
    154,823.20x = 231,889.20 × 127,175.20
  4. Step 4: Simplify right side
    154,823.20x = 29,490,555,387.84
  5. Step 5: Solve for x
    x = 29,490,555,387.84/154,823.20
  6. Step 6: Final answer
    x = 190,478.92

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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.