Home / 149,862.91-206,804.70-81,882.24

Finding the Fourth Proportional to 149,862.91, 206,804.70 and 81,882.24

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Solution

The fourth proportional to 149,862.91, 206,804.70 and 81,882.24 is: 112,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,862.91 : 206,804.70 = 81,882.24 : x
  2. Step 2: Convert to fraction form
    149,862.91/206,804.70 = 81,882.24/x
  3. Step 3: Cross multiply
    149,862.91x = 206,804.70 × 81,882.24
  4. Step 4: Simplify right side
    149,862.91x = 16,933,632,078.53
  5. Step 5: Solve for x
    x = 16,933,632,078.53/149,862.91
  6. Step 6: Final answer
    x = 112,994.15

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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.