Home / 123,537.40-185,306.10-40,439.80

Finding the Fourth Proportional to 123,537.40, 185,306.10 and 40,439.80

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Solution

The fourth proportional to 123,537.40, 185,306.10 and 40,439.80 is: 60,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,537.40 : 185,306.10 = 40,439.80 : x
  2. Step 2: Convert to fraction form
    123,537.40/185,306.10 = 40,439.80/x
  3. Step 3: Cross multiply
    123,537.40x = 185,306.10 × 40,439.80
  4. Step 4: Simplify right side
    123,537.40x = 7,493,741,622.78
  5. Step 5: Solve for x
    x = 7,493,741,622.78/123,537.40
  6. Step 6: Final answer
    x = 60,659.70

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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.