Home / 137,981.78-206,972.67-43,219.37

Finding the Fourth Proportional to 137,981.78, 206,972.67 and 43,219.37

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Solution

The fourth proportional to 137,981.78, 206,972.67 and 43,219.37 is: 64,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,981.78 : 206,972.67 = 43,219.37 : x
  2. Step 2: Convert to fraction form
    137,981.78/206,972.67 = 43,219.37/x
  3. Step 3: Cross multiply
    137,981.78x = 206,972.67 × 43,219.37
  4. Step 4: Simplify right side
    137,981.78x = 8,945,227,369.75
  5. Step 5: Solve for x
    x = 8,945,227,369.75/137,981.78
  6. Step 6: Final answer
    x = 64,829.05

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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.