Home / 138,217.69-190,799.27-92,921.95

Finding the Fourth Proportional to 138,217.69, 190,799.27 and 92,921.95

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Solution

The fourth proportional to 138,217.69, 190,799.27 and 92,921.95 is: 128,271.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,217.69 : 190,799.27 = 92,921.95 : x
  2. Step 2: Convert to fraction form
    138,217.69/190,799.27 = 92,921.95/x
  3. Step 3: Cross multiply
    138,217.69x = 190,799.27 × 92,921.95
  4. Step 4: Simplify right side
    138,217.69x = 17,729,440,226.98
  5. Step 5: Solve for x
    x = 17,729,440,226.98/138,217.69
  6. Step 6: Final answer
    x = 128,271.86

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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.