Home / 147,628.92-221,311.74-54,112.80

Finding the Fourth Proportional to 147,628.92, 221,311.74 and 54,112.80

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Solution

The fourth proportional to 147,628.92, 221,311.74 and 54,112.80 is: 81,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,628.92 : 221,311.74 = 54,112.80 : x
  2. Step 2: Convert to fraction form
    147,628.92/221,311.74 = 54,112.80/x
  3. Step 3: Cross multiply
    147,628.92x = 221,311.74 × 54,112.80
  4. Step 4: Simplify right side
    147,628.92x = 11,975,797,924.27
  5. Step 5: Solve for x
    x = 11,975,797,924.27/147,628.92
  6. Step 6: Final answer
    x = 81,120.95

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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.