Home / 127,231.20-190,924.80-52,387.20

Finding the Fourth Proportional to 127,231.20, 190,924.80 and 52,387.20

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Solution

The fourth proportional to 127,231.20, 190,924.80 and 52,387.20 is: 78,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,231.20 : 190,924.80 = 52,387.20 : x
  2. Step 2: Convert to fraction form
    127,231.20/190,924.80 = 52,387.20/x
  3. Step 3: Cross multiply
    127,231.20x = 190,924.80 × 52,387.20
  4. Step 4: Simplify right side
    127,231.20x = 10,002,015,682.56
  5. Step 5: Solve for x
    x = 10,002,015,682.56/127,231.20
  6. Step 6: Final answer
    x = 78,612.92

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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.