Home / 122,390.39-183,658.37-66,229.36

Finding the Fourth Proportional to 122,390.39, 183,658.37 and 66,229.36

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Solution

The fourth proportional to 122,390.39, 183,658.37 and 66,229.36 is: 99,383.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,390.39 : 183,658.37 = 66,229.36 : x
  2. Step 2: Convert to fraction form
    122,390.39/183,658.37 = 66,229.36/x
  3. Step 3: Cross multiply
    122,390.39x = 183,658.37 × 66,229.36
  4. Step 4: Simplify right side
    122,390.39x = 12,163,576,919.07
  5. Step 5: Solve for x
    x = 12,163,576,919.07/122,390.39
  6. Step 6: Final answer
    x = 99,383.43

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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.