Home / 138,268.43-190,797.23-101,989.62

Finding the Fourth Proportional to 138,268.43, 190,797.23 and 101,989.62

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Solution

The fourth proportional to 138,268.43, 190,797.23 and 101,989.62 is: 140,735.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,268.43 : 190,797.23 = 101,989.62 : x
  2. Step 2: Convert to fraction form
    138,268.43/190,797.23 = 101,989.62/x
  3. Step 3: Cross multiply
    138,268.43x = 190,797.23 × 101,989.62
  4. Step 4: Simplify right side
    138,268.43x = 19,459,336,474.80
  5. Step 5: Solve for x
    x = 19,459,336,474.80/138,268.43
  6. Step 6: Final answer
    x = 140,735.94

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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.