Home / 165,218.10-247,701.66-85,169.82

Finding the Fourth Proportional to 165,218.10, 247,701.66 and 85,169.82

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Solution

The fourth proportional to 165,218.10, 247,701.66 and 85,169.82 is: 127,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,218.10 : 247,701.66 = 85,169.82 : x
  2. Step 2: Convert to fraction form
    165,218.10/247,701.66 = 85,169.82/x
  3. Step 3: Cross multiply
    165,218.10x = 247,701.66 × 85,169.82
  4. Step 4: Simplify right side
    165,218.10x = 21,096,705,795.90
  5. Step 5: Solve for x
    x = 21,096,705,795.90/165,218.10
  6. Step 6: Final answer
    x = 127,690.04

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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.