Home / 133,981.82-200,664.66-74,686.18

Finding the Fourth Proportional to 133,981.82, 200,664.66 and 74,686.18

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Solution

The fourth proportional to 133,981.82, 200,664.66 and 74,686.18 is: 111,857.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,981.82 : 200,664.66 = 74,686.18 : x
  2. Step 2: Convert to fraction form
    133,981.82/200,664.66 = 74,686.18/x
  3. Step 3: Cross multiply
    133,981.82x = 200,664.66 × 74,686.18
  4. Step 4: Simplify right side
    133,981.82x = 14,986,876,916.40
  5. Step 5: Solve for x
    x = 14,986,876,916.40/133,981.82
  6. Step 6: Final answer
    x = 111,857.54

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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.