Home / 204,070.84-306,109.34-77,718.08

Finding the Fourth Proportional to 204,070.84, 306,109.34 and 77,718.08

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Solution

The fourth proportional to 204,070.84, 306,109.34 and 77,718.08 is: 116,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,070.84 : 306,109.34 = 77,718.08 : x
  2. Step 2: Convert to fraction form
    204,070.84/306,109.34 = 77,718.08/x
  3. Step 3: Cross multiply
    204,070.84x = 306,109.34 × 77,718.08
  4. Step 4: Simplify right side
    204,070.84x = 23,790,230,174.87
  5. Step 5: Solve for x
    x = 23,790,230,174.87/204,070.84
  6. Step 6: Final answer
    x = 116,578.29

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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.