Home / 139,923.74-193,099.26-79,493.28

Finding the Fourth Proportional to 139,923.74, 193,099.26 and 79,493.28

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Solution

The fourth proportional to 139,923.74, 193,099.26 and 79,493.28 is: 109,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,923.74 : 193,099.26 = 79,493.28 : x
  2. Step 2: Convert to fraction form
    139,923.74/193,099.26 = 79,493.28/x
  3. Step 3: Cross multiply
    139,923.74x = 193,099.26 × 79,493.28
  4. Step 4: Simplify right side
    139,923.74x = 15,350,093,542.97
  5. Step 5: Solve for x
    x = 15,350,093,542.97/139,923.74
  6. Step 6: Final answer
    x = 109,703.29

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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.