Home / 149,868.06-206,815.50-81,883.58

Finding the Fourth Proportional to 149,868.06, 206,815.50 and 81,883.58

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Solution

The fourth proportional to 149,868.06, 206,815.50 and 81,883.58 is: 112,998.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,868.06 : 206,815.50 = 81,883.58 : x
  2. Step 2: Convert to fraction form
    149,868.06/206,815.50 = 81,883.58/x
  3. Step 3: Cross multiply
    149,868.06x = 206,815.50 × 81,883.58
  4. Step 4: Simplify right side
    149,868.06x = 16,934,793,539.49
  5. Step 5: Solve for x
    x = 16,934,793,539.49/149,868.06
  6. Step 6: Final answer
    x = 112,998.02

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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.