Home / 118,974.12-164,190.78-68,689.32

Finding the Fourth Proportional to 118,974.12, 164,190.78 and 68,689.32

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Solution

The fourth proportional to 118,974.12, 164,190.78 and 68,689.32 is: 94,795.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,974.12 : 164,190.78 = 68,689.32 : x
  2. Step 2: Convert to fraction form
    118,974.12/164,190.78 = 68,689.32/x
  3. Step 3: Cross multiply
    118,974.12x = 164,190.78 × 68,689.32
  4. Step 4: Simplify right side
    118,974.12x = 11,278,153,028.47
  5. Step 5: Solve for x
    x = 11,278,153,028.47/118,974.12
  6. Step 6: Final answer
    x = 94,795.01

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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.