Home / 149,456.43-206,247.47-81,476.10

Finding the Fourth Proportional to 149,456.43, 206,247.47 and 81,476.10

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Solution

The fourth proportional to 149,456.43, 206,247.47 and 81,476.10 is: 112,435.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,456.43 : 206,247.47 = 81,476.10 : x
  2. Step 2: Convert to fraction form
    149,456.43/206,247.47 = 81,476.10/x
  3. Step 3: Cross multiply
    149,456.43x = 206,247.47 × 81,476.10
  4. Step 4: Simplify right side
    149,456.43x = 16,804,239,083.09
  5. Step 5: Solve for x
    x = 16,804,239,083.09/149,456.43
  6. Step 6: Final answer
    x = 112,435.71

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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.