Home / 121,443.20-182,067.60-51,264.80

Finding the Fourth Proportional to 121,443.20, 182,067.60 and 51,264.80

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Solution

The fourth proportional to 121,443.20, 182,067.60 and 51,264.80 is: 76,856.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,443.20 : 182,067.60 = 51,264.80 : x
  2. Step 2: Convert to fraction form
    121,443.20/182,067.60 = 51,264.80/x
  3. Step 3: Cross multiply
    121,443.20x = 182,067.60 × 51,264.80
  4. Step 4: Simplify right side
    121,443.20x = 9,333,659,100.48
  5. Step 5: Solve for x
    x = 9,333,659,100.48/121,443.20
  6. Step 6: Final answer
    x = 76,856.17

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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.