Home / 139,377.15-192,371.09-91,634.94

Finding the Fourth Proportional to 139,377.15, 192,371.09 and 91,634.94

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Solution

The fourth proportional to 139,377.15, 192,371.09 and 91,634.94 is: 126,476.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,377.15 : 192,371.09 = 91,634.94 : x
  2. Step 2: Convert to fraction form
    139,377.15/192,371.09 = 91,634.94/x
  3. Step 3: Cross multiply
    139,377.15x = 192,371.09 × 91,634.94
  4. Step 4: Simplify right side
    139,377.15x = 17,627,912,831.71
  5. Step 5: Solve for x
    x = 17,627,912,831.71/139,377.15
  6. Step 6: Final answer
    x = 126,476.35

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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.