Home / 118,932.75-164,127.20-68,631.75

Finding the Fourth Proportional to 118,932.75, 164,127.20 and 68,631.75

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Solution

The fourth proportional to 118,932.75, 164,127.20 and 68,631.75 is: 94,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,932.75 : 164,127.20 = 68,631.75 : x
  2. Step 2: Convert to fraction form
    118,932.75/164,127.20 = 68,631.75/x
  3. Step 3: Cross multiply
    118,932.75x = 164,127.20 × 68,631.75
  4. Step 4: Simplify right side
    118,932.75x = 11,264,336,958.60
  5. Step 5: Solve for x
    x = 11,264,336,958.60/118,932.75
  6. Step 6: Final answer
    x = 94,711.82

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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.