Home / 107,105.32-148,446.49-105,113.80

Finding the Fourth Proportional to 107,105.32, 148,446.49 and 105,113.80

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Solution

The fourth proportional to 107,105.32, 148,446.49 and 105,113.80 is: 145,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,105.32 : 148,446.49 = 105,113.80 : x
  2. Step 2: Convert to fraction form
    107,105.32/148,446.49 = 105,113.80/x
  3. Step 3: Cross multiply
    107,105.32x = 148,446.49 × 105,113.80
  4. Step 4: Simplify right side
    107,105.32x = 15,603,774,660.56
  5. Step 5: Solve for x
    x = 15,603,774,660.56/107,105.32
  6. Step 6: Final answer
    x = 145,686.27

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.