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Finding the Fourth Proportional to 122,522.60, 183,783.90 and 80,532.20

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Solution

The fourth proportional to 122,522.60, 183,783.90 and 80,532.20 is: 120,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,522.60 : 183,783.90 = 80,532.20 : x
  2. Step 2: Convert to fraction form
    122,522.60/183,783.90 = 80,532.20/x
  3. Step 3: Cross multiply
    122,522.60x = 183,783.90 × 80,532.20
  4. Step 4: Simplify right side
    122,522.60x = 14,800,521,791.58
  5. Step 5: Solve for x
    x = 14,800,521,791.58/122,522.60
  6. Step 6: Final answer
    x = 120,798.30

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1.5x scale

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.