Home / 206,580.18-284,974.38-137,788.08

Finding the Fourth Proportional to 206,580.18, 284,974.38 and 137,788.08

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Solution

The fourth proportional to 206,580.18, 284,974.38 and 137,788.08 is: 190,076.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,580.18 : 284,974.38 = 137,788.08 : x
  2. Step 2: Convert to fraction form
    206,580.18/284,974.38 = 137,788.08/x
  3. Step 3: Cross multiply
    206,580.18x = 284,974.38 × 137,788.08
  4. Step 4: Simplify right side
    206,580.18x = 39,266,072,669.39
  5. Step 5: Solve for x
    x = 39,266,072,669.39/206,580.18
  6. Step 6: Final answer
    x = 190,076.67

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Why These Related Problems?

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