Home / 136,641.09-204,983.37-57,756

Finding the Fourth Proportional to 136,641.09, 204,983.37 and 57,756

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Solution

The fourth proportional to 136,641.09, 204,983.37 and 57,756 is: 86,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,641.09 : 204,983.37 = 57,756 : x
  2. Step 2: Convert to fraction form
    136,641.09/204,983.37 = 57,756/x
  3. Step 3: Cross multiply
    136,641.09x = 204,983.37 × 57,756
  4. Step 4: Simplify right side
    136,641.09x = 11,839,019,517.72
  5. Step 5: Solve for x
    x = 11,839,019,517.72/136,641.09
  6. Step 6: Final answer
    x = 86,643.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.