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Finding the Fourth Proportional to 101,159.97, 139,600.78 and 55,837.97

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Solution

The fourth proportional to 101,159.97, 139,600.78 and 55,837.97 is: 77,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,159.97 : 139,600.78 = 55,837.97 : x
  2. Step 2: Convert to fraction form
    101,159.97/139,600.78 = 55,837.97/x
  3. Step 3: Cross multiply
    101,159.97x = 139,600.78 × 55,837.97
  4. Step 4: Simplify right side
    101,159.97x = 7,795,024,165.62
  5. Step 5: Solve for x
    x = 7,795,024,165.62/101,159.97
  6. Step 6: Final answer
    x = 77,056.41

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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.