Home / 151,990.68-228,083.94-81,918.84

Finding the Fourth Proportional to 151,990.68, 228,083.94 and 81,918.84

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Solution

The fourth proportional to 151,990.68, 228,083.94 and 81,918.84 is: 122,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,990.68 : 228,083.94 = 81,918.84 : x
  2. Step 2: Convert to fraction form
    151,990.68/228,083.94 = 81,918.84/x
  3. Step 3: Cross multiply
    151,990.68x = 228,083.94 × 81,918.84
  4. Step 4: Simplify right side
    151,990.68x = 18,684,371,787.43
  5. Step 5: Solve for x
    x = 18,684,371,787.43/151,990.68
  6. Step 6: Final answer
    x = 122,931.04

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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.