Home / 103,193.98-142,397.82-57,861.56

Finding the Fourth Proportional to 103,193.98, 142,397.82 and 57,861.56

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Solution

The fourth proportional to 103,193.98, 142,397.82 and 57,861.56 is: 79,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,193.98 : 142,397.82 = 57,861.56 : x
  2. Step 2: Convert to fraction form
    103,193.98/142,397.82 = 57,861.56/x
  3. Step 3: Cross multiply
    103,193.98x = 142,397.82 × 57,861.56
  4. Step 4: Simplify right side
    103,193.98x = 8,239,360,361.79
  5. Step 5: Solve for x
    x = 8,239,360,361.79/103,193.98
  6. Step 6: Final answer
    x = 79,843.42

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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.