Home / 149,842.99-206,787.34-81,862.83

Finding the Fourth Proportional to 149,842.99, 206,787.34 and 81,862.83

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Solution

The fourth proportional to 149,842.99, 206,787.34 and 81,862.83 is: 112,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,842.99 : 206,787.34 = 81,862.83 : x
  2. Step 2: Convert to fraction form
    149,842.99/206,787.34 = 81,862.83/x
  3. Step 3: Cross multiply
    149,842.99x = 206,787.34 × 81,862.83
  4. Step 4: Simplify right side
    149,842.99x = 16,928,196,496.43
  5. Step 5: Solve for x
    x = 16,928,196,496.43/149,842.99
  6. Step 6: Final answer
    x = 112,972.90

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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.