Home / 206,316.09-309,371.99-73,176.39

Finding the Fourth Proportional to 206,316.09, 309,371.99 and 73,176.39

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Solution

The fourth proportional to 206,316.09, 309,371.99 and 73,176.39 is: 109,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,316.09 : 309,371.99 = 73,176.39 : x
  2. Step 2: Convert to fraction form
    206,316.09/309,371.99 = 73,176.39/x
  3. Step 3: Cross multiply
    206,316.09x = 309,371.99 × 73,176.39
  4. Step 4: Simplify right side
    206,316.09x = 22,638,725,029.43
  5. Step 5: Solve for x
    x = 22,638,725,029.43/206,316.09
  6. Step 6: Final answer
    x = 109,728.35

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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.