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Finding the Fourth Proportional to 122,482.40, 183,529.20 and 80,880.80

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Solution

The fourth proportional to 122,482.40, 183,529.20 and 80,880.80 is: 121,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,482.40 : 183,529.20 = 80,880.80 : x
  2. Step 2: Convert to fraction form
    122,482.40/183,529.20 = 80,880.80/x
  3. Step 3: Cross multiply
    122,482.40x = 183,529.20 × 80,880.80
  4. Step 4: Simplify right side
    122,482.40x = 14,843,988,519.36
  5. Step 5: Solve for x
    x = 14,843,988,519.36/122,482.40
  6. Step 6: Final answer
    x = 121,192.83

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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.