Home / 209,571.81-314,181.38-91,153.96

Finding the Fourth Proportional to 209,571.81, 314,181.38 and 91,153.96

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Solution

The fourth proportional to 209,571.81, 314,181.38 and 91,153.96 is: 136,654.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,571.81 : 314,181.38 = 91,153.96 : x
  2. Step 2: Convert to fraction form
    209,571.81/314,181.38 = 91,153.96/x
  3. Step 3: Cross multiply
    209,571.81x = 314,181.38 × 91,153.96
  4. Step 4: Simplify right side
    209,571.81x = 28,638,876,387.70
  5. Step 5: Solve for x
    x = 28,638,876,387.70/209,571.81
  6. Step 6: Final answer
    x = 136,654.24

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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.