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Finding the Fourth Proportional to 201,102.80, 301,763.55 and 82,786.10

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Solution

The fourth proportional to 201,102.80, 301,763.55 and 82,786.10 is: 124,224.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,102.80 : 301,763.55 = 82,786.10 : x
  2. Step 2: Convert to fraction form
    201,102.80/301,763.55 = 82,786.10/x
  3. Step 3: Cross multiply
    201,102.80x = 301,763.55 × 82,786.10
  4. Step 4: Simplify right side
    201,102.80x = 24,981,827,426.66
  5. Step 5: Solve for x
    x = 24,981,827,426.66/201,102.80
  6. Step 6: Final answer
    x = 124,224.17

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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.