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Finding the Fourth Proportional to 129,853.60, 194,806.73 and 73,720.60

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Solution

The fourth proportional to 129,853.60, 194,806.73 and 73,720.60 is: 110,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,853.60 : 194,806.73 = 73,720.60 : x
  2. Step 2: Convert to fraction form
    129,853.60/194,806.73 = 73,720.60/x
  3. Step 3: Cross multiply
    129,853.60x = 194,806.73 × 73,720.60
  4. Step 4: Simplify right side
    129,853.60x = 14,361,269,019.64
  5. Step 5: Solve for x
    x = 14,361,269,019.64/129,853.60
  6. Step 6: Final answer
    x = 110,595.85

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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.