Home / 151,632.75-209,185.56-87,933.66

Finding the Fourth Proportional to 151,632.75, 209,185.56 and 87,933.66

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Solution

The fourth proportional to 151,632.75, 209,185.56 and 87,933.66 is: 121,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,632.75 : 209,185.56 = 87,933.66 : x
  2. Step 2: Convert to fraction form
    151,632.75/209,185.56 = 87,933.66/x
  3. Step 3: Cross multiply
    151,632.75x = 209,185.56 × 87,933.66
  4. Step 4: Simplify right side
    151,632.75x = 18,394,451,909.95
  5. Step 5: Solve for x
    x = 18,394,451,909.95/151,632.75
  6. Step 6: Final answer
    x = 121,309.23

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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.