Home / 203,089.43-280,256.54-112,449.21

Finding the Fourth Proportional to 203,089.43, 280,256.54 and 112,449.21

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Solution

The fourth proportional to 203,089.43, 280,256.54 and 112,449.21 is: 155,176.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,089.43 : 280,256.54 = 112,449.21 : x
  2. Step 2: Convert to fraction form
    203,089.43/280,256.54 = 112,449.21/x
  3. Step 3: Cross multiply
    203,089.43x = 280,256.54 × 112,449.21
  4. Step 4: Simplify right side
    203,089.43x = 31,514,625,958.09
  5. Step 5: Solve for x
    x = 31,514,625,958.09/203,089.43
  6. Step 6: Final answer
    x = 155,176.11

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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.