Home / 204,101.20-306,078.90-70,985.80

Finding the Fourth Proportional to 204,101.20, 306,078.90 and 70,985.80

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Solution

The fourth proportional to 204,101.20, 306,078.90 and 70,985.80 is: 106,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,101.20 : 306,078.90 = 70,985.80 : x
  2. Step 2: Convert to fraction form
    204,101.20/306,078.90 = 70,985.80/x
  3. Step 3: Cross multiply
    204,101.20x = 306,078.90 × 70,985.80
  4. Step 4: Simplify right side
    204,101.20x = 21,727,255,579.62
  5. Step 5: Solve for x
    x = 21,727,255,579.62/204,101.20
  6. Step 6: Final answer
    x = 106,453.35

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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.