Home / 159,537.25-220,162.85-87,919.84

Finding the Fourth Proportional to 159,537.25, 220,162.85 and 87,919.84

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Solution

The fourth proportional to 159,537.25, 220,162.85 and 87,919.84 is: 121,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,537.25 : 220,162.85 = 87,919.84 : x
  2. Step 2: Convert to fraction form
    159,537.25/220,162.85 = 87,919.84/x
  3. Step 3: Cross multiply
    159,537.25x = 220,162.85 × 87,919.84
  4. Step 4: Simplify right side
    159,537.25x = 19,356,682,545.94
  5. Step 5: Solve for x
    x = 19,356,682,545.94/159,537.25
  6. Step 6: Final answer
    x = 121,330.18

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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.