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Finding the Fourth Proportional to 155,753.09, 214,939.13 and 84,133.09

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Solution

The fourth proportional to 155,753.09, 214,939.13 and 84,133.09 is: 116,103.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,753.09 : 214,939.13 = 84,133.09 : x
  2. Step 2: Convert to fraction form
    155,753.09/214,939.13 = 84,133.09/x
  3. Step 3: Cross multiply
    155,753.09x = 214,939.13 × 84,133.09
  4. Step 4: Simplify right side
    155,753.09x = 18,083,493,168.81
  5. Step 5: Solve for x
    x = 18,083,493,168.81/155,753.09
  6. Step 6: Final answer
    x = 116,103.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.