Home / 139,935.24-193,115.85-79,516.14

Finding the Fourth Proportional to 139,935.24, 193,115.85 and 79,516.14

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Solution

The fourth proportional to 139,935.24, 193,115.85 and 79,516.14 is: 109,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,935.24 : 193,115.85 = 79,516.14 : x
  2. Step 2: Convert to fraction form
    139,935.24/193,115.85 = 79,516.14/x
  3. Step 3: Cross multiply
    139,935.24x = 193,115.85 × 79,516.14
  4. Step 4: Simplify right side
    139,935.24x = 15,355,826,964.82
  5. Step 5: Solve for x
    x = 15,355,826,964.82/139,935.24
  6. Step 6: Final answer
    x = 109,735.24

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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.