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Finding the Fourth Proportional to 122,608.50, 182,839.80 and 121,487.43

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Solution

The fourth proportional to 122,608.50, 182,839.80 and 121,487.43 is: 181,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,608.50 : 182,839.80 = 121,487.43 : x
  2. Step 2: Convert to fraction form
    122,608.50/182,839.80 = 121,487.43/x
  3. Step 3: Cross multiply
    122,608.50x = 182,839.80 × 121,487.43
  4. Step 4: Simplify right side
    122,608.50x = 22,212,737,403.71
  5. Step 5: Solve for x
    x = 22,212,737,403.71/122,608.50
  6. Step 6: Final answer
    x = 181,168.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.