Home / 119,830.76-165,381.09-68,843.40

Finding the Fourth Proportional to 119,830.76, 165,381.09 and 68,843.40

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Solution

The fourth proportional to 119,830.76, 165,381.09 and 68,843.40 is: 95,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,830.76 : 165,381.09 = 68,843.40 : x
  2. Step 2: Convert to fraction form
    119,830.76/165,381.09 = 68,843.40/x
  3. Step 3: Cross multiply
    119,830.76x = 165,381.09 × 68,843.40
  4. Step 4: Simplify right side
    119,830.76x = 11,385,396,531.31
  5. Step 5: Solve for x
    x = 11,385,396,531.31/119,830.76
  6. Step 6: Final answer
    x = 95,012.31

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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.