Home / 117,721.20-176,581.80-51,193.20

Finding the Fourth Proportional to 117,721.20, 176,581.80 and 51,193.20

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Solution

The fourth proportional to 117,721.20, 176,581.80 and 51,193.20 is: 76,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,721.20 : 176,581.80 = 51,193.20 : x
  2. Step 2: Convert to fraction form
    117,721.20/176,581.80 = 51,193.20/x
  3. Step 3: Cross multiply
    117,721.20x = 176,581.80 × 51,193.20
  4. Step 4: Simplify right side
    117,721.20x = 9,039,787,403.76
  5. Step 5: Solve for x
    x = 9,039,787,403.76/117,721.20
  6. Step 6: Final answer
    x = 76,789.80

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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.