Home / 139,795.75-192,923.59-79,372.02

Finding the Fourth Proportional to 139,795.75, 192,923.59 and 79,372.02

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Solution

The fourth proportional to 139,795.75, 192,923.59 and 79,372.02 is: 109,536.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,795.75 : 192,923.59 = 79,372.02 : x
  2. Step 2: Convert to fraction form
    139,795.75/192,923.59 = 79,372.02/x
  3. Step 3: Cross multiply
    139,795.75x = 192,923.59 × 79,372.02
  4. Step 4: Simplify right side
    139,795.75x = 15,312,734,277.76
  5. Step 5: Solve for x
    x = 15,312,734,277.76/139,795.75
  6. Step 6: Final answer
    x = 109,536.48

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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.