Home / 122,521.20-183,538.80-107,908.80

Finding the Fourth Proportional to 122,521.20, 183,538.80 and 107,908.80

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Solution

The fourth proportional to 122,521.20, 183,538.80 and 107,908.80 is: 161,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,521.20 : 183,538.80 = 107,908.80 : x
  2. Step 2: Convert to fraction form
    122,521.20/183,538.80 = 107,908.80/x
  3. Step 3: Cross multiply
    122,521.20x = 183,538.80 × 107,908.80
  4. Step 4: Simplify right side
    122,521.20x = 19,805,451,661.44
  5. Step 5: Solve for x
    x = 19,805,451,661.44/122,521.20
  6. Step 6: Final answer
    x = 161,649.18

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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.