Home / 127,813.80-191,933.22-79,893.39

Finding the Fourth Proportional to 127,813.80, 191,933.22 and 79,893.39

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Solution

The fourth proportional to 127,813.80, 191,933.22 and 79,893.39 is: 119,972.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,813.80 : 191,933.22 = 79,893.39 : x
  2. Step 2: Convert to fraction form
    127,813.80/191,933.22 = 79,893.39/x
  3. Step 3: Cross multiply
    127,813.80x = 191,933.22 × 79,893.39
  4. Step 4: Simplify right side
    127,813.80x = 15,334,195,314.44
  5. Step 5: Solve for x
    x = 15,334,195,314.44/127,813.80
  6. Step 6: Final answer
    x = 119,972.93

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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.