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Finding the Fourth Proportional to 139,199.76, 192,096.17 and 75,537.55

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Solution

The fourth proportional to 139,199.76, 192,096.17 and 75,537.55 is: 104,242.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,199.76 : 192,096.17 = 75,537.55 : x
  2. Step 2: Convert to fraction form
    139,199.76/192,096.17 = 75,537.55/x
  3. Step 3: Cross multiply
    139,199.76x = 192,096.17 × 75,537.55
  4. Step 4: Simplify right side
    139,199.76x = 14,510,474,046.18
  5. Step 5: Solve for x
    x = 14,510,474,046.18/139,199.76
  6. Step 6: Final answer
    x = 104,242.09

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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.