Home / 105,738.40-158,737.20-104,960.80

Finding the Fourth Proportional to 105,738.40, 158,737.20 and 104,960.80

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Solution

The fourth proportional to 105,738.40, 158,737.20 and 104,960.80 is: 157,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,738.40 : 158,737.20 = 104,960.80 : x
  2. Step 2: Convert to fraction form
    105,738.40/158,737.20 = 104,960.80/x
  3. Step 3: Cross multiply
    105,738.40x = 158,737.20 × 104,960.80
  4. Step 4: Simplify right side
    105,738.40x = 16,661,183,501.76
  5. Step 5: Solve for x
    x = 16,661,183,501.76/105,738.40
  6. Step 6: Final answer
    x = 157,569.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.