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Finding the Fourth Proportional to 123,080.40, 184,620.60 and 67,093.20

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Solution

The fourth proportional to 123,080.40, 184,620.60 and 67,093.20 is: 100,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,080.40 : 184,620.60 = 67,093.20 : x
  2. Step 2: Convert to fraction form
    123,080.40/184,620.60 = 67,093.20/x
  3. Step 3: Cross multiply
    123,080.40x = 184,620.60 × 67,093.20
  4. Step 4: Simplify right side
    123,080.40x = 12,386,786,839.92
  5. Step 5: Solve for x
    x = 12,386,786,839.92/123,080.40
  6. Step 6: Final answer
    x = 100,639.80

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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.