Home / 204,145.25-306,223.34-77,769.45

Finding the Fourth Proportional to 204,145.25, 306,223.34 and 77,769.45

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Solution

The fourth proportional to 204,145.25, 306,223.34 and 77,769.45 is: 116,656.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,145.25 : 306,223.34 = 77,769.45 : x
  2. Step 2: Convert to fraction form
    204,145.25/306,223.34 = 77,769.45/x
  3. Step 3: Cross multiply
    204,145.25x = 306,223.34 × 77,769.45
  4. Step 4: Simplify right side
    204,145.25x = 23,814,820,340.12
  5. Step 5: Solve for x
    x = 23,814,820,340.12/204,145.25
  6. Step 6: Final answer
    x = 116,656.26

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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.