Home / 102,708.69-141,761.66-66,836.41

Finding the Fourth Proportional to 102,708.69, 141,761.66 and 66,836.41

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Solution

The fourth proportional to 102,708.69, 141,761.66 and 66,836.41 is: 92,249.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,708.69 : 141,761.66 = 66,836.41 : x
  2. Step 2: Convert to fraction form
    102,708.69/141,761.66 = 66,836.41/x
  3. Step 3: Cross multiply
    102,708.69x = 141,761.66 × 66,836.41
  4. Step 4: Simplify right side
    102,708.69x = 9,474,840,430.04
  5. Step 5: Solve for x
    x = 9,474,840,430.04/102,708.69
  6. Step 6: Final answer
    x = 92,249.65

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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.