Home / 119,716.21-165,210.87-66,003.49

Finding the Fourth Proportional to 119,716.21, 165,210.87 and 66,003.49

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Solution

The fourth proportional to 119,716.21, 165,210.87 and 66,003.49 is: 91,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,716.21 : 165,210.87 = 66,003.49 : x
  2. Step 2: Convert to fraction form
    119,716.21/165,210.87 = 66,003.49/x
  3. Step 3: Cross multiply
    119,716.21x = 165,210.87 × 66,003.49
  4. Step 4: Simplify right side
    119,716.21x = 10,904,494,005.94
  5. Step 5: Solve for x
    x = 10,904,494,005.94/119,716.21
  6. Step 6: Final answer
    x = 91,086.19

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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.