Home / 149,401.01-206,167.40-81,416.54

Finding the Fourth Proportional to 149,401.01, 206,167.40 and 81,416.54

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Solution

The fourth proportional to 149,401.01, 206,167.40 and 81,416.54 is: 112,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,401.01 : 206,167.40 = 81,416.54 : x
  2. Step 2: Convert to fraction form
    149,401.01/206,167.40 = 81,416.54/x
  3. Step 3: Cross multiply
    149,401.01x = 206,167.40 × 81,416.54
  4. Step 4: Simplify right side
    149,401.01x = 16,785,434,930.88
  5. Step 5: Solve for x
    x = 16,785,434,930.88/149,401.01
  6. Step 6: Final answer
    x = 112,351.55

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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.