Home / 149,743.32-206,644.22-81,760.08

Finding the Fourth Proportional to 149,743.32, 206,644.22 and 81,760.08

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Solution

The fourth proportional to 149,743.32, 206,644.22 and 81,760.08 is: 112,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,743.32 : 206,644.22 = 81,760.08 : x
  2. Step 2: Convert to fraction form
    149,743.32/206,644.22 = 81,760.08/x
  3. Step 3: Cross multiply
    149,743.32x = 206,644.22 × 81,760.08
  4. Step 4: Simplify right side
    149,743.32x = 16,895,248,401.50
  5. Step 5: Solve for x
    x = 16,895,248,401.50/149,743.32
  6. Step 6: Final answer
    x = 112,828.06

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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.