Home / 137,961.43-190,353.52-80,568.17

Finding the Fourth Proportional to 137,961.43, 190,353.52 and 80,568.17

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Solution

The fourth proportional to 137,961.43, 190,353.52 and 80,568.17 is: 111,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,961.43 : 190,353.52 = 80,568.17 : x
  2. Step 2: Convert to fraction form
    137,961.43/190,353.52 = 80,568.17/x
  3. Step 3: Cross multiply
    137,961.43x = 190,353.52 × 80,568.17
  4. Step 4: Simplify right side
    137,961.43x = 15,336,434,395.63
  5. Step 5: Solve for x
    x = 15,336,434,395.63/137,961.43
  6. Step 6: Final answer
    x = 111,164.65

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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.