Home / 106,003.56-146,217.78-79,117.32

Finding the Fourth Proportional to 106,003.56, 146,217.78 and 79,117.32

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Solution

The fourth proportional to 106,003.56, 146,217.78 and 79,117.32 is: 109,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,003.56 : 146,217.78 = 79,117.32 : x
  2. Step 2: Convert to fraction form
    106,003.56/146,217.78 = 79,117.32/x
  3. Step 3: Cross multiply
    106,003.56x = 146,217.78 × 79,117.32
  4. Step 4: Simplify right side
    106,003.56x = 11,568,358,889.95
  5. Step 5: Solve for x
    x = 11,568,358,889.95/106,003.56
  6. Step 6: Final answer
    x = 109,131.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.