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Finding the Fourth Proportional to 123,622.80, 185,434.20 and 122,310.60

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Solution

The fourth proportional to 123,622.80, 185,434.20 and 122,310.60 is: 183,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,622.80 : 185,434.20 = 122,310.60 : x
  2. Step 2: Convert to fraction form
    123,622.80/185,434.20 = 122,310.60/x
  3. Step 3: Cross multiply
    123,622.80x = 185,434.20 × 122,310.60
  4. Step 4: Simplify right side
    123,622.80x = 22,680,568,262.52
  5. Step 5: Solve for x
    x = 22,680,568,262.52/123,622.80
  6. Step 6: Final answer
    x = 183,465.90

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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.