Home / 148,115.68-204,187-105,600.40

Finding the Fourth Proportional to 148,115.68, 204,187 and 105,600.40

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Solution

The fourth proportional to 148,115.68, 204,187 and 105,600.40 is: 145,576.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,115.68 : 204,187 = 105,600.40 : x
  2. Step 2: Convert to fraction form
    148,115.68/204,187 = 105,600.40/x
  3. Step 3: Cross multiply
    148,115.68x = 204,187 × 105,600.40
  4. Step 4: Simplify right side
    148,115.68x = 21,562,228,874.80
  5. Step 5: Solve for x
    x = 21,562,228,874.80/148,115.68
  6. Step 6: Final answer
    x = 145,576.95

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1.5x scale

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.