Home / 138,217.87-190,799.50-92,922.12

Finding the Fourth Proportional to 138,217.87, 190,799.50 and 92,922.12

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Solution

The fourth proportional to 138,217.87, 190,799.50 and 92,922.12 is: 128,272.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,217.87 : 190,799.50 = 92,922.12 : x
  2. Step 2: Convert to fraction form
    138,217.87/190,799.50 = 92,922.12/x
  3. Step 3: Cross multiply
    138,217.87x = 190,799.50 × 92,922.12
  4. Step 4: Simplify right side
    138,217.87x = 17,729,494,034.94
  5. Step 5: Solve for x
    x = 17,729,494,034.94/138,217.87
  6. Step 6: Final answer
    x = 128,272.09

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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.