Home / 139,727.17-192,850.07-79,303.48

Finding the Fourth Proportional to 139,727.17, 192,850.07 and 79,303.48

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Solution

The fourth proportional to 139,727.17, 192,850.07 and 79,303.48 is: 109,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,727.17 : 192,850.07 = 79,303.48 : x
  2. Step 2: Convert to fraction form
    139,727.17/192,850.07 = 79,303.48/x
  3. Step 3: Cross multiply
    139,727.17x = 192,850.07 × 79,303.48
  4. Step 4: Simplify right side
    139,727.17x = 15,293,681,669.24
  5. Step 5: Solve for x
    x = 15,293,681,669.24/139,727.17
  6. Step 6: Final answer
    x = 109,453.89

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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.