Home / 147,815.92-221,745.75-54,314.38

Finding the Fourth Proportional to 147,815.92, 221,745.75 and 54,314.38

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Solution

The fourth proportional to 147,815.92, 221,745.75 and 54,314.38 is: 81,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,815.92 : 221,745.75 = 54,314.38 : x
  2. Step 2: Convert to fraction form
    147,815.92/221,745.75 = 54,314.38/x
  3. Step 3: Cross multiply
    147,815.92x = 221,745.75 × 54,314.38
  4. Step 4: Simplify right side
    147,815.92x = 12,043,982,928.89
  5. Step 5: Solve for x
    x = 12,043,982,928.89/147,815.92
  6. Step 6: Final answer
    x = 81,479.61

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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.