Home / 139,177.51-192,066.19-75,516.57

Finding the Fourth Proportional to 139,177.51, 192,066.19 and 75,516.57

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Solution

The fourth proportional to 139,177.51, 192,066.19 and 75,516.57 is: 104,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,177.51 : 192,066.19 = 75,516.57 : x
  2. Step 2: Convert to fraction form
    139,177.51/192,066.19 = 75,516.57/x
  3. Step 3: Cross multiply
    139,177.51x = 192,066.19 × 75,516.57
  4. Step 4: Simplify right side
    139,177.51x = 14,504,179,692.98
  5. Step 5: Solve for x
    x = 14,504,179,692.98/139,177.51
  6. Step 6: Final answer
    x = 104,213.53

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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.