Home / 118,965.38-164,186.80-68,664.38

Finding the Fourth Proportional to 118,965.38, 164,186.80 and 68,664.38

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Solution

The fourth proportional to 118,965.38, 164,186.80 and 68,664.38 is: 94,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,965.38 : 164,186.80 = 68,664.38 : x
  2. Step 2: Convert to fraction form
    118,965.38/164,186.80 = 68,664.38/x
  3. Step 3: Cross multiply
    118,965.38x = 164,186.80 × 68,664.38
  4. Step 4: Simplify right side
    118,965.38x = 11,273,783,833.59
  5. Step 5: Solve for x
    x = 11,273,783,833.59/118,965.38
  6. Step 6: Final answer
    x = 94,765.25

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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.