Home / 159,215.28-219,717.07-87,593.76

Finding the Fourth Proportional to 159,215.28, 219,717.07 and 87,593.76

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Solution

The fourth proportional to 159,215.28, 219,717.07 and 87,593.76 is: 120,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,215.28 : 219,717.07 = 87,593.76 : x
  2. Step 2: Convert to fraction form
    159,215.28/219,717.07 = 87,593.76/x
  3. Step 3: Cross multiply
    159,215.28x = 219,717.07 × 87,593.76
  4. Step 4: Simplify right side
    159,215.28x = 19,245,844,297.48
  5. Step 5: Solve for x
    x = 19,245,844,297.48/159,215.28
  6. Step 6: Final answer
    x = 120,879.38

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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.