Home / 203,028.72-280,176.23-112,382.74

Finding the Fourth Proportional to 203,028.72, 280,176.23 and 112,382.74

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Solution

The fourth proportional to 203,028.72, 280,176.23 and 112,382.74 is: 155,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,028.72 : 280,176.23 = 112,382.74 : x
  2. Step 2: Convert to fraction form
    203,028.72/280,176.23 = 112,382.74/x
  3. Step 3: Cross multiply
    203,028.72x = 280,176.23 × 112,382.74
  4. Step 4: Simplify right side
    203,028.72x = 31,486,972,410.27
  5. Step 5: Solve for x
    x = 31,486,972,410.27/203,028.72
  6. Step 6: Final answer
    x = 155,086.30

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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.