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Finding the Fourth Proportional to 101,266.31, 151,795.79 and 42,136.31

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Solution

The fourth proportional to 101,266.31, 151,795.79 and 42,136.31 is: 63,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,266.31 : 151,795.79 = 42,136.31 : x
  2. Step 2: Convert to fraction form
    101,266.31/151,795.79 = 42,136.31/x
  3. Step 3: Cross multiply
    101,266.31x = 151,795.79 × 42,136.31
  4. Step 4: Simplify right side
    101,266.31x = 6,396,114,790.95
  5. Step 5: Solve for x
    x = 6,396,114,790.95/101,266.31
  6. Step 6: Final answer
    x = 63,161.33

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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.