Home / 203,123.33-280,310.45-111,242.19

Finding the Fourth Proportional to 203,123.33, 280,310.45 and 111,242.19

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Solution

The fourth proportional to 203,123.33, 280,310.45 and 111,242.19 is: 153,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,123.33 : 280,310.45 = 111,242.19 : x
  2. Step 2: Convert to fraction form
    203,123.33/280,310.45 = 111,242.19/x
  3. Step 3: Cross multiply
    203,123.33x = 280,310.45 × 111,242.19
  4. Step 4: Simplify right side
    203,123.33x = 31,182,347,781.67
  5. Step 5: Solve for x
    x = 31,182,347,781.67/203,123.33
  6. Step 6: Final answer
    x = 153,514.36

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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.