Home / 137,291.20-205,718.10-101,861.80

Finding the Fourth Proportional to 137,291.20, 205,718.10 and 101,861.80

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Solution

The fourth proportional to 137,291.20, 205,718.10 and 101,861.80 is: 152,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,291.20 : 205,718.10 = 101,861.80 : x
  2. Step 2: Convert to fraction form
    137,291.20/205,718.10 = 101,861.80/x
  3. Step 3: Cross multiply
    137,291.20x = 205,718.10 × 101,861.80
  4. Step 4: Simplify right side
    137,291.20x = 20,954,815,958.58
  5. Step 5: Solve for x
    x = 20,954,815,958.58/137,291.20
  6. Step 6: Final answer
    x = 152,630.44

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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.