Home / 151,851.36-209,545.62-91,441.56

Finding the Fourth Proportional to 151,851.36, 209,545.62 and 91,441.56

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Solution

The fourth proportional to 151,851.36, 209,545.62 and 91,441.56 is: 126,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,851.36 : 209,545.62 = 91,441.56 : x
  2. Step 2: Convert to fraction form
    151,851.36/209,545.62 = 91,441.56/x
  3. Step 3: Cross multiply
    151,851.36x = 209,545.62 × 91,441.56
  4. Step 4: Simplify right side
    151,851.36x = 19,161,178,383.97
  5. Step 5: Solve for x
    x = 19,161,178,383.97/151,851.36
  6. Step 6: Final answer
    x = 126,183.78

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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.