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Finding the Fourth Proportional to 139,270.74, 192,194.55 and 75,608.88

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Solution

The fourth proportional to 139,270.74, 192,194.55 and 75,608.88 is: 104,340.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,270.74 : 192,194.55 = 75,608.88 : x
  2. Step 2: Convert to fraction form
    139,270.74/192,194.55 = 75,608.88/x
  3. Step 3: Cross multiply
    139,270.74x = 192,194.55 × 75,608.88
  4. Step 4: Simplify right side
    139,270.74x = 14,531,614,667.60
  5. Step 5: Solve for x
    x = 14,531,614,667.60/139,270.74
  6. Step 6: Final answer
    x = 104,340.76

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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.