Home / 148,664.46-205,226.76-99,689.44

Finding the Fourth Proportional to 148,664.46, 205,226.76 and 99,689.44

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Solution

The fourth proportional to 148,664.46, 205,226.76 and 99,689.44 is: 137,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,664.46 : 205,226.76 = 99,689.44 : x
  2. Step 2: Convert to fraction form
    148,664.46/205,226.76 = 99,689.44/x
  3. Step 3: Cross multiply
    148,664.46x = 205,226.76 × 99,689.44
  4. Step 4: Simplify right side
    148,664.46x = 20,458,940,777.41
  5. Step 5: Solve for x
    x = 20,458,940,777.41/148,664.46
  6. Step 6: Final answer
    x = 137,618.24

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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.