Home / 203,074.29-280,233.41-112,423.86

Finding the Fourth Proportional to 203,074.29, 280,233.41 and 112,423.86

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Solution

The fourth proportional to 203,074.29, 280,233.41 and 112,423.86 is: 155,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,074.29 : 280,233.41 = 112,423.86 : x
  2. Step 2: Convert to fraction form
    203,074.29/280,233.41 = 112,423.86/x
  3. Step 3: Cross multiply
    203,074.29x = 280,233.41 × 112,423.86
  4. Step 4: Simplify right side
    203,074.29x = 31,504,921,091.04
  5. Step 5: Solve for x
    x = 31,504,921,091.04/203,074.29
  6. Step 6: Final answer
    x = 155,139.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.