Home / 121,948.20-182,797.56-82,509.48

Finding the Fourth Proportional to 121,948.20, 182,797.56 and 82,509.48

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Solution

The fourth proportional to 121,948.20, 182,797.56 and 82,509.48 is: 123,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,948.20 : 182,797.56 = 82,509.48 : x
  2. Step 2: Convert to fraction form
    121,948.20/182,797.56 = 82,509.48/x
  3. Step 3: Cross multiply
    121,948.20x = 182,797.56 × 82,509.48
  4. Step 4: Simplify right side
    121,948.20x = 15,082,531,620.87
  5. Step 5: Solve for x
    x = 15,082,531,620.87/121,948.20
  6. Step 6: Final answer
    x = 123,679.82

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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.