Home / 119,840.40-165,379.80-68,856.48

Finding the Fourth Proportional to 119,840.40, 165,379.80 and 68,856.48

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Solution

The fourth proportional to 119,840.40, 165,379.80 and 68,856.48 is: 95,021.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,840.40 : 165,379.80 = 68,856.48 : x
  2. Step 2: Convert to fraction form
    119,840.40/165,379.80 = 68,856.48/x
  3. Step 3: Cross multiply
    119,840.40x = 165,379.80 × 68,856.48
  4. Step 4: Simplify right side
    119,840.40x = 11,387,470,891.10
  5. Step 5: Solve for x
    x = 11,387,470,891.10/119,840.40
  6. Step 6: Final answer
    x = 95,021.97

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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.