Home / 119,778.48-165,288.20-68,755.77

Finding the Fourth Proportional to 119,778.48, 165,288.20 and 68,755.77

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Solution

The fourth proportional to 119,778.48, 165,288.20 and 68,755.77 is: 94,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,778.48 : 165,288.20 = 68,755.77 : x
  2. Step 2: Convert to fraction form
    119,778.48/165,288.20 = 68,755.77/x
  3. Step 3: Cross multiply
    119,778.48x = 165,288.20 × 68,755.77
  4. Step 4: Simplify right side
    119,778.48x = 11,364,517,119.14
  5. Step 5: Solve for x
    x = 11,364,517,119.14/119,778.48
  6. Step 6: Final answer
    x = 94,879.46

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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.