Home / 131,729.20-181,784.46-75,141.52

Finding the Fourth Proportional to 131,729.20, 181,784.46 and 75,141.52

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Solution

The fourth proportional to 131,729.20, 181,784.46 and 75,141.52 is: 103,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,729.20 : 181,784.46 = 75,141.52 : x
  2. Step 2: Convert to fraction form
    131,729.20/181,784.46 = 75,141.52/x
  3. Step 3: Cross multiply
    131,729.20x = 181,784.46 × 75,141.52
  4. Step 4: Simplify right side
    131,729.20x = 13,659,560,636.78
  5. Step 5: Solve for x
    x = 13,659,560,636.78/131,729.20
  6. Step 6: Final answer
    x = 103,694.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.