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Finding the Fourth Proportional to 101,129.35, 151,736.55 and 54,327.55

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Solution

The fourth proportional to 101,129.35, 151,736.55 and 54,327.55 is: 81,514.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,129.35 : 151,736.55 = 54,327.55 : x
  2. Step 2: Convert to fraction form
    101,129.35/151,736.55 = 54,327.55/x
  3. Step 3: Cross multiply
    101,129.35x = 151,736.55 × 54,327.55
  4. Step 4: Simplify right side
    101,129.35x = 8,243,475,006.95
  5. Step 5: Solve for x
    x = 8,243,475,006.95/101,129.35
  6. Step 6: Final answer
    x = 81,514.17

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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.