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Finding the Fourth Proportional to 122,665.38, 183,998.07 and 39,559.38

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Solution

The fourth proportional to 122,665.38, 183,998.07 and 39,559.38 is: 59,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,665.38 : 183,998.07 = 39,559.38 : x
  2. Step 2: Convert to fraction form
    122,665.38/183,998.07 = 39,559.38/x
  3. Step 3: Cross multiply
    122,665.38x = 183,998.07 × 39,559.38
  4. Step 4: Simplify right side
    122,665.38x = 7,278,848,452.61
  5. Step 5: Solve for x
    x = 7,278,848,452.61/122,665.38
  6. Step 6: Final answer
    x = 59,339.06

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1.5x scale

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.