Home / 102,287.12-141,083.52-68,278.46

Finding the Fourth Proportional to 102,287.12, 141,083.52 and 68,278.46

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Solution

The fourth proportional to 102,287.12, 141,083.52 and 68,278.46 is: 94,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,287.12 : 141,083.52 = 68,278.46 : x
  2. Step 2: Convert to fraction form
    102,287.12/141,083.52 = 68,278.46/x
  3. Step 3: Cross multiply
    102,287.12x = 141,083.52 × 68,278.46
  4. Step 4: Simplify right side
    102,287.12x = 9,632,965,476.98
  5. Step 5: Solve for x
    x = 9,632,965,476.98/102,287.12
  6. Step 6: Final answer
    x = 94,175.74

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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.