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Finding the Fourth Proportional to 100,323.53, 138,450.84 and 60,029.57

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Solution

The fourth proportional to 100,323.53, 138,450.84 and 60,029.57 is: 82,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,323.53 : 138,450.84 = 60,029.57 : x
  2. Step 2: Convert to fraction form
    100,323.53/138,450.84 = 60,029.57/x
  3. Step 3: Cross multiply
    100,323.53x = 138,450.84 × 60,029.57
  4. Step 4: Simplify right side
    100,323.53x = 8,311,144,512.36
  5. Step 5: Solve for x
    x = 8,311,144,512.36/100,323.53
  6. Step 6: Final answer
    x = 82,843.42

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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.