Home / 195,028.20-292,542.30-76,638.60

Finding the Fourth Proportional to 195,028.20, 292,542.30 and 76,638.60

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Solution

The fourth proportional to 195,028.20, 292,542.30 and 76,638.60 is: 114,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,028.20 : 292,542.30 = 76,638.60 : x
  2. Step 2: Convert to fraction form
    195,028.20/292,542.30 = 76,638.60/x
  3. Step 3: Cross multiply
    195,028.20x = 292,542.30 × 76,638.60
  4. Step 4: Simplify right side
    195,028.20x = 22,420,032,312.78
  5. Step 5: Solve for x
    x = 22,420,032,312.78/195,028.20
  6. Step 6: Final answer
    x = 114,957.90

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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.