Home / 203,514.32-280,867.01-112,899.48

Finding the Fourth Proportional to 203,514.32, 280,867.01 and 112,899.48

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Solution

The fourth proportional to 203,514.32, 280,867.01 and 112,899.48 is: 155,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,514.32 : 280,867.01 = 112,899.48 : x
  2. Step 2: Convert to fraction form
    203,514.32/280,867.01 = 112,899.48/x
  3. Step 3: Cross multiply
    203,514.32x = 280,867.01 × 112,899.48
  4. Step 4: Simplify right side
    203,514.32x = 31,709,738,813.66
  5. Step 5: Solve for x
    x = 31,709,738,813.66/203,514.32
  6. Step 6: Final answer
    x = 155,810.85

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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.