Home / 68,965.88-102,845.30-68,335.28

Finding the Fourth Proportional to 68,965.88, 102,845.30 and 68,335.28

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Solution

The fourth proportional to 68,965.88, 102,845.30 and 68,335.28 is: 101,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,965.88 : 102,845.30 = 68,335.28 : x
  2. Step 2: Convert to fraction form
    68,965.88/102,845.30 = 68,335.28/x
  3. Step 3: Cross multiply
    68,965.88x = 102,845.30 × 68,335.28
  4. Step 4: Simplify right side
    68,965.88x = 7,027,961,901.95
  5. Step 5: Solve for x
    x = 7,027,961,901.95/68,965.88
  6. Step 6: Final answer
    x = 101,904.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.