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Finding the Fourth Proportional to 123,245.73, 184,868.60 and 40,139.73

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Solution

The fourth proportional to 123,245.73, 184,868.60 and 40,139.73 is: 60,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,245.73 : 184,868.60 = 40,139.73 : x
  2. Step 2: Convert to fraction form
    123,245.73/184,868.60 = 40,139.73/x
  3. Step 3: Cross multiply
    123,245.73x = 184,868.60 × 40,139.73
  4. Step 4: Simplify right side
    123,245.73x = 7,420,575,488.78
  5. Step 5: Solve for x
    x = 7,420,575,488.78/123,245.73
  6. Step 6: Final answer
    x = 60,209.60

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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.