Home / 196,913.30-295,260.60-78,450.80

Finding the Fourth Proportional to 196,913.30, 295,260.60 and 78,450.80

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Solution

The fourth proportional to 196,913.30, 295,260.60 and 78,450.80 is: 117,632.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,913.30 : 295,260.60 = 78,450.80 : x
  2. Step 2: Convert to fraction form
    196,913.30/295,260.60 = 78,450.80/x
  3. Step 3: Cross multiply
    196,913.30x = 295,260.60 × 78,450.80
  4. Step 4: Simplify right side
    196,913.30x = 23,163,430,278.48
  5. Step 5: Solve for x
    x = 23,163,430,278.48/196,913.30
  6. Step 6: Final answer
    x = 117,632.63

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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.