Home / 139,178.46-192,066.30-75,516.27

Finding the Fourth Proportional to 139,178.46, 192,066.30 and 75,516.27

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Solution

The fourth proportional to 139,178.46, 192,066.30 and 75,516.27 is: 104,212.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,178.46 : 192,066.30 = 75,516.27 : x
  2. Step 2: Convert to fraction form
    139,178.46/192,066.30 = 75,516.27/x
  3. Step 3: Cross multiply
    139,178.46x = 192,066.30 × 75,516.27
  4. Step 4: Simplify right side
    139,178.46x = 14,504,130,568.70
  5. Step 5: Solve for x
    x = 14,504,130,568.70/139,178.46
  6. Step 6: Final answer
    x = 104,212.47

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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.