Home / 108,961.80-150,355.62-66,504.84

Finding the Fourth Proportional to 108,961.80, 150,355.62 and 66,504.84

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Solution

The fourth proportional to 108,961.80, 150,355.62 and 66,504.84 is: 91,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,961.80 : 150,355.62 = 66,504.84 : x
  2. Step 2: Convert to fraction form
    108,961.80/150,355.62 = 66,504.84/x
  3. Step 3: Cross multiply
    108,961.80x = 150,355.62 × 66,504.84
  4. Step 4: Simplify right side
    108,961.80x = 9,999,376,451.20
  5. Step 5: Solve for x
    x = 9,999,376,451.20/108,961.80
  6. Step 6: Final answer
    x = 91,769.56

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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.