Home / 147,780.48-221,759.04-54,295.68

Finding the Fourth Proportional to 147,780.48, 221,759.04 and 54,295.68

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Solution

The fourth proportional to 147,780.48, 221,759.04 and 54,295.68 is: 81,475.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,780.48 : 221,759.04 = 54,295.68 : x
  2. Step 2: Convert to fraction form
    147,780.48/221,759.04 = 54,295.68/x
  3. Step 3: Cross multiply
    147,780.48x = 221,759.04 × 54,295.68
  4. Step 4: Simplify right side
    147,780.48x = 12,040,557,872.95
  5. Step 5: Solve for x
    x = 12,040,557,872.95/147,780.48
  6. Step 6: Final answer
    x = 81,475.97

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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.