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Finding the Fourth Proportional to 133,860, 184,726.80 and 74,244

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Solution

The fourth proportional to 133,860, 184,726.80 and 74,244 is: 102,456.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,860 : 184,726.80 = 74,244 : x
  2. Step 2: Convert to fraction form
    133,860/184,726.80 = 74,244/x
  3. Step 3: Cross multiply
    133,860x = 184,726.80 × 74,244
  4. Step 4: Simplify right side
    133,860x = 13,714,856,539.20
  5. Step 5: Solve for x
    x = 13,714,856,539.20/133,860
  6. Step 6: Final answer
    x = 102,456.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.