Home / 112,934.40-169,286.40-66,163.20

Finding the Fourth Proportional to 112,934.40, 169,286.40 and 66,163.20

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Solution

The fourth proportional to 112,934.40, 169,286.40 and 66,163.20 is: 99,177.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,934.40 : 169,286.40 = 66,163.20 : x
  2. Step 2: Convert to fraction form
    112,934.40/169,286.40 = 66,163.20/x
  3. Step 3: Cross multiply
    112,934.40x = 169,286.40 × 66,163.20
  4. Step 4: Simplify right side
    112,934.40x = 11,200,529,940.48
  5. Step 5: Solve for x
    x = 11,200,529,940.48/112,934.40
  6. Step 6: Final answer
    x = 99,177.31

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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.