Home / 203,314.20-280,672.74-135,371.40

Finding the Fourth Proportional to 203,314.20, 280,672.74 and 135,371.40

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Solution

The fourth proportional to 203,314.20, 280,672.74 and 135,371.40 is: 186,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,314.20 : 280,672.74 = 135,371.40 : x
  2. Step 2: Convert to fraction form
    203,314.20/280,672.74 = 135,371.40/x
  3. Step 3: Cross multiply
    203,314.20x = 280,672.74 × 135,371.40
  4. Step 4: Simplify right side
    203,314.20x = 37,995,061,755.64
  5. Step 5: Solve for x
    x = 37,995,061,755.64/203,314.20
  6. Step 6: Final answer
    x = 186,878.54

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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.