Home / 159,579.93-220,230.15-87,959.79

Finding the Fourth Proportional to 159,579.93, 220,230.15 and 87,959.79

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Solution

The fourth proportional to 159,579.93, 220,230.15 and 87,959.79 is: 121,389.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,579.93 : 220,230.15 = 87,959.79 : x
  2. Step 2: Convert to fraction form
    159,579.93/220,230.15 = 87,959.79/x
  3. Step 3: Cross multiply
    159,579.93x = 220,230.15 × 87,959.79
  4. Step 4: Simplify right side
    159,579.93x = 19,371,397,745.67
  5. Step 5: Solve for x
    x = 19,371,397,745.67/159,579.93
  6. Step 6: Final answer
    x = 121,389.94

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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.