Home / 106,523.57-159,633.05-78,221.59

Finding the Fourth Proportional to 106,523.57, 159,633.05 and 78,221.59

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Solution

The fourth proportional to 106,523.57, 159,633.05 and 78,221.59 is: 117,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,523.57 : 159,633.05 = 78,221.59 : x
  2. Step 2: Convert to fraction form
    106,523.57/159,633.05 = 78,221.59/x
  3. Step 3: Cross multiply
    106,523.57x = 159,633.05 × 78,221.59
  4. Step 4: Simplify right side
    106,523.57x = 12,486,750,189.38
  5. Step 5: Solve for x
    x = 12,486,750,189.38/106,523.57
  6. Step 6: Final answer
    x = 117,220.54

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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.