Home / 159,578.90-220,216.26-87,965.59

Finding the Fourth Proportional to 159,578.90, 220,216.26 and 87,965.59

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Solution

The fourth proportional to 159,578.90, 220,216.26 and 87,965.59 is: 121,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,578.90 : 220,216.26 = 87,965.59 : x
  2. Step 2: Convert to fraction form
    159,578.90/220,216.26 = 87,965.59/x
  3. Step 3: Cross multiply
    159,578.90x = 220,216.26 × 87,965.59
  4. Step 4: Simplify right side
    159,578.90x = 19,371,452,687.95
  5. Step 5: Solve for x
    x = 19,371,452,687.95/159,578.90
  6. Step 6: Final answer
    x = 121,391.06

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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.