Home / 139,216.82-192,119.09-75,554.46

Finding the Fourth Proportional to 139,216.82, 192,119.09 and 75,554.46

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Solution

The fourth proportional to 139,216.82, 192,119.09 and 75,554.46 is: 104,265.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,216.82 : 192,119.09 = 75,554.46 : x
  2. Step 2: Convert to fraction form
    139,216.82/192,119.09 = 75,554.46/x
  3. Step 3: Cross multiply
    139,216.82x = 192,119.09 × 75,554.46
  4. Step 4: Simplify right side
    139,216.82x = 14,515,453,722.87
  5. Step 5: Solve for x
    x = 14,515,453,722.87/139,216.82
  6. Step 6: Final answer
    x = 104,265.09

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1.5x scale

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.