Home / 118,921.24-164,107.75-65,204.43

Finding the Fourth Proportional to 118,921.24, 164,107.75 and 65,204.43

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Solution

The fourth proportional to 118,921.24, 164,107.75 and 65,204.43 is: 89,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,921.24 : 164,107.75 = 65,204.43 : x
  2. Step 2: Convert to fraction form
    118,921.24/164,107.75 = 65,204.43/x
  3. Step 3: Cross multiply
    118,921.24x = 164,107.75 × 65,204.43
  4. Step 4: Simplify right side
    118,921.24x = 10,700,552,297.33
  5. Step 5: Solve for x
    x = 10,700,552,297.33/118,921.24
  6. Step 6: Final answer
    x = 89,980.16

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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.