Home / 151,801.24-209,021.96-137,561.44

Finding the Fourth Proportional to 151,801.24, 209,021.96 and 137,561.44

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Solution

The fourth proportional to 151,801.24, 209,021.96 and 137,561.44 is: 189,414.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,801.24 : 209,021.96 = 137,561.44 : x
  2. Step 2: Convert to fraction form
    151,801.24/209,021.96 = 137,561.44/x
  3. Step 3: Cross multiply
    151,801.24x = 209,021.96 × 137,561.44
  4. Step 4: Simplify right side
    151,801.24x = 28,753,361,809.22
  5. Step 5: Solve for x
    x = 28,753,361,809.22/151,801.24
  6. Step 6: Final answer
    x = 189,414.54

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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.