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Finding the Fourth Proportional to 122,609, 182,840.55 and 121,487.93

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Solution

The fourth proportional to 122,609, 182,840.55 and 121,487.93 is: 181,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,609 : 182,840.55 = 121,487.93 : x
  2. Step 2: Convert to fraction form
    122,609/182,840.55 = 121,487.93/x
  3. Step 3: Cross multiply
    122,609x = 182,840.55 × 121,487.93
  4. Step 4: Simplify right side
    122,609x = 22,212,919,939.56
  5. Step 5: Solve for x
    x = 22,212,919,939.56/122,609
  6. Step 6: Final answer
    x = 181,168.76

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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.