Home / 203,973.20-305,841-79,168.40

Finding the Fourth Proportional to 203,973.20, 305,841 and 79,168.40

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Solution

The fourth proportional to 203,973.20, 305,841 and 79,168.40 is: 118,706.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,973.20 : 305,841 = 79,168.40 : x
  2. Step 2: Convert to fraction form
    203,973.20/305,841 = 79,168.40/x
  3. Step 3: Cross multiply
    203,973.20x = 305,841 × 79,168.40
  4. Step 4: Simplify right side
    203,973.20x = 24,212,942,624.40
  5. Step 5: Solve for x
    x = 24,212,942,624.40/203,973.20
  6. Step 6: Final answer
    x = 118,706.49

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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.