Home / 203,423.40-305,183.70-98,155.80

Finding the Fourth Proportional to 203,423.40, 305,183.70 and 98,155.80

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Solution

The fourth proportional to 203,423.40, 305,183.70 and 98,155.80 is: 147,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,423.40 : 305,183.70 = 98,155.80 : x
  2. Step 2: Convert to fraction form
    203,423.40/305,183.70 = 98,155.80/x
  3. Step 3: Cross multiply
    203,423.40x = 305,183.70 × 98,155.80
  4. Step 4: Simplify right side
    203,423.40x = 29,955,550,220.46
  5. Step 5: Solve for x
    x = 29,955,550,220.46/203,423.40
  6. Step 6: Final answer
    x = 147,257.15

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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.