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Finding the Fourth Proportional to 101,337.42, 139,845.67 and 55,397.26

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Solution

The fourth proportional to 101,337.42, 139,845.67 and 55,397.26 is: 76,448.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,337.42 : 139,845.67 = 55,397.26 : x
  2. Step 2: Convert to fraction form
    101,337.42/139,845.67 = 55,397.26/x
  3. Step 3: Cross multiply
    101,337.42x = 139,845.67 × 55,397.26
  4. Step 4: Simplify right side
    101,337.42x = 7,747,067,381.58
  5. Step 5: Solve for x
    x = 7,747,067,381.58/101,337.42
  6. Step 6: Final answer
    x = 76,448.24

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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.