Home / 149,786.84-206,707.25-85,252.91

Finding the Fourth Proportional to 149,786.84, 206,707.25 and 85,252.91

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Solution

The fourth proportional to 149,786.84, 206,707.25 and 85,252.91 is: 117,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,786.84 : 206,707.25 = 85,252.91 : x
  2. Step 2: Convert to fraction form
    149,786.84/206,707.25 = 85,252.91/x
  3. Step 3: Cross multiply
    149,786.84x = 206,707.25 × 85,252.91
  4. Step 4: Simplify right side
    149,786.84x = 17,622,393,760.19
  5. Step 5: Solve for x
    x = 17,622,393,760.19/149,786.84
  6. Step 6: Final answer
    x = 117,649.81

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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.