Home / 68,890.20-103,364.10-22,157.40

Finding the Fourth Proportional to 68,890.20, 103,364.10 and 22,157.40

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Solution

The fourth proportional to 68,890.20, 103,364.10 and 22,157.40 is: 33,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,890.20 : 103,364.10 = 22,157.40 : x
  2. Step 2: Convert to fraction form
    68,890.20/103,364.10 = 22,157.40/x
  3. Step 3: Cross multiply
    68,890.20x = 103,364.10 × 22,157.40
  4. Step 4: Simplify right side
    68,890.20x = 2,290,279,709.34
  5. Step 5: Solve for x
    x = 2,290,279,709.34/68,890.20
  6. Step 6: Final answer
    x = 33,245.36

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1.5x scale

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.