Home / 149,403.66-206,177.05-82,335.66

Finding the Fourth Proportional to 149,403.66, 206,177.05 and 82,335.66

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Solution

The fourth proportional to 149,403.66, 206,177.05 and 82,335.66 is: 113,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,403.66 : 206,177.05 = 82,335.66 : x
  2. Step 2: Convert to fraction form
    149,403.66/206,177.05 = 82,335.66/x
  3. Step 3: Cross multiply
    149,403.66x = 206,177.05 × 82,335.66
  4. Step 4: Simplify right side
    149,403.66x = 16,975,722,973.16
  5. Step 5: Solve for x
    x = 16,975,722,973.16/149,403.66
  6. Step 6: Final answer
    x = 113,623.21

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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.