Home / 123,251.12-184,876.68-40,145.12

Finding the Fourth Proportional to 123,251.12, 184,876.68 and 40,145.12

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Solution

The fourth proportional to 123,251.12, 184,876.68 and 40,145.12 is: 60,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,251.12 : 184,876.68 = 40,145.12 : x
  2. Step 2: Convert to fraction form
    123,251.12/184,876.68 = 40,145.12/x
  3. Step 3: Cross multiply
    123,251.12x = 184,876.68 × 40,145.12
  4. Step 4: Simplify right side
    123,251.12x = 7,421,896,503.80
  5. Step 5: Solve for x
    x = 7,421,896,503.80/123,251.12
  6. Step 6: Final answer
    x = 60,217.68

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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.