Home / 146,826.68-220,205.79-71,871.71

Finding the Fourth Proportional to 146,826.68, 220,205.79 and 71,871.71

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Solution

The fourth proportional to 146,826.68, 220,205.79 and 71,871.71 is: 107,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,826.68 : 220,205.79 = 71,871.71 : x
  2. Step 2: Convert to fraction form
    146,826.68/220,205.79 = 71,871.71/x
  3. Step 3: Cross multiply
    146,826.68x = 220,205.79 × 71,871.71
  4. Step 4: Simplify right side
    146,826.68x = 15,826,565,578.17
  5. Step 5: Solve for x
    x = 15,826,565,578.17/146,826.68
  6. Step 6: Final answer
    x = 107,790.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.