Home / 122,521.20-183,954.60-75,865.20

Finding the Fourth Proportional to 122,521.20, 183,954.60 and 75,865.20

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Solution

The fourth proportional to 122,521.20, 183,954.60 and 75,865.20 is: 113,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,521.20 : 183,954.60 = 75,865.20 : x
  2. Step 2: Convert to fraction form
    122,521.20/183,954.60 = 75,865.20/x
  3. Step 3: Cross multiply
    122,521.20x = 183,954.60 × 75,865.20
  4. Step 4: Simplify right side
    122,521.20x = 13,955,752,519.92
  5. Step 5: Solve for x
    x = 13,955,752,519.92/122,521.20
  6. Step 6: Final answer
    x = 113,904.80

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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.