Home / 122,003.80-183,005.70-102,758.20

Finding the Fourth Proportional to 122,003.80, 183,005.70 and 102,758.20

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Solution

The fourth proportional to 122,003.80, 183,005.70 and 102,758.20 is: 154,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,003.80 : 183,005.70 = 102,758.20 : x
  2. Step 2: Convert to fraction form
    122,003.80/183,005.70 = 102,758.20/x
  3. Step 3: Cross multiply
    122,003.80x = 183,005.70 × 102,758.20
  4. Step 4: Simplify right side
    122,003.80x = 18,805,336,321.74
  5. Step 5: Solve for x
    x = 18,805,336,321.74/122,003.80
  6. Step 6: Final answer
    x = 154,137.30

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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.