Home / 159,440.85-220,028.07-87,825.69

Finding the Fourth Proportional to 159,440.85, 220,028.07 and 87,825.69

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Solution

The fourth proportional to 159,440.85, 220,028.07 and 87,825.69 is: 121,199.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,440.85 : 220,028.07 = 87,825.69 : x
  2. Step 2: Convert to fraction form
    159,440.85/220,028.07 = 87,825.69/x
  3. Step 3: Cross multiply
    159,440.85x = 220,028.07 × 87,825.69
  4. Step 4: Simplify right side
    159,440.85x = 19,324,117,067.12
  5. Step 5: Solve for x
    x = 19,324,117,067.12/159,440.85
  6. Step 6: Final answer
    x = 121,199.29

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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.