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Finding the Fourth Proportional to 101,119.64, 139,544.93 and 55,797.58

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Solution

The fourth proportional to 101,119.64, 139,544.93 and 55,797.58 is: 77,000.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,119.64 : 139,544.93 = 55,797.58 : x
  2. Step 2: Convert to fraction form
    101,119.64/139,544.93 = 55,797.58/x
  3. Step 3: Cross multiply
    101,119.64x = 139,544.93 × 55,797.58
  4. Step 4: Simplify right side
    101,119.64x = 7,786,269,395.27
  5. Step 5: Solve for x
    x = 7,786,269,395.27/101,119.64
  6. Step 6: Final answer
    x = 77,000.56

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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.