Home / 139,954.27-193,129.62-79,516.52

Finding the Fourth Proportional to 139,954.27, 193,129.62 and 79,516.52

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Solution

The fourth proportional to 139,954.27, 193,129.62 and 79,516.52 is: 109,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,954.27 : 193,129.62 = 79,516.52 : x
  2. Step 2: Convert to fraction form
    139,954.27/193,129.62 = 79,516.52/x
  3. Step 3: Cross multiply
    139,954.27x = 193,129.62 × 79,516.52
  4. Step 4: Simplify right side
    139,954.27x = 15,356,995,291.32
  5. Step 5: Solve for x
    x = 15,356,995,291.32/139,954.27
  6. Step 6: Final answer
    x = 109,728.67

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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.