Home / 220,112.70-330,169.05-79,853.10

Finding the Fourth Proportional to 220,112.70, 330,169.05 and 79,853.10

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Solution

The fourth proportional to 220,112.70, 330,169.05 and 79,853.10 is: 119,779.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,112.70 : 330,169.05 = 79,853.10 : x
  2. Step 2: Convert to fraction form
    220,112.70/330,169.05 = 79,853.10/x
  3. Step 3: Cross multiply
    220,112.70x = 330,169.05 × 79,853.10
  4. Step 4: Simplify right side
    220,112.70x = 26,365,022,166.56
  5. Step 5: Solve for x
    x = 26,365,022,166.56/220,112.70
  6. Step 6: Final answer
    x = 119,779.65

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1.5x scale

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.