Home / 127,165.39-190,788.18-79,813.43

Finding the Fourth Proportional to 127,165.39, 190,788.18 and 79,813.43

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Solution

The fourth proportional to 127,165.39, 190,788.18 and 79,813.43 is: 119,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,165.39 : 190,788.18 = 79,813.43 : x
  2. Step 2: Convert to fraction form
    127,165.39/190,788.18 = 79,813.43/x
  3. Step 3: Cross multiply
    127,165.39x = 190,788.18 × 79,813.43
  4. Step 4: Simplify right side
    127,165.39x = 15,227,458,648.31
  5. Step 5: Solve for x
    x = 15,227,458,648.31/127,165.39
  6. Step 6: Final answer
    x = 119,745.30

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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.