Home / 100,447.46-138,608.33-59,604.55

Finding the Fourth Proportional to 100,447.46, 138,608.33 and 59,604.55

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Solution

The fourth proportional to 100,447.46, 138,608.33 and 59,604.55 is: 82,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,447.46 : 138,608.33 = 59,604.55 : x
  2. Step 2: Convert to fraction form
    100,447.46/138,608.33 = 59,604.55/x
  3. Step 3: Cross multiply
    100,447.46x = 138,608.33 × 59,604.55
  4. Step 4: Simplify right side
    100,447.46x = 8,261,686,144.84
  5. Step 5: Solve for x
    x = 8,261,686,144.84/100,447.46
  6. Step 6: Final answer
    x = 82,248.83

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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.