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Finding the Fourth Proportional to 139,506.50, 192,177.31 and 101,153.36

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Solution

The fourth proportional to 139,506.50, 192,177.31 and 101,153.36 is: 139,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,506.50 : 192,177.31 = 101,153.36 : x
  2. Step 2: Convert to fraction form
    139,506.50/192,177.31 = 101,153.36/x
  3. Step 3: Cross multiply
    139,506.50x = 192,177.31 × 101,153.36
  4. Step 4: Simplify right side
    139,506.50x = 19,439,379,958.49
  5. Step 5: Solve for x
    x = 19,439,379,958.49/139,506.50
  6. Step 6: Final answer
    x = 139,343.90

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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.