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Finding the Fourth Proportional to 129,225.60, 193,694.40 and 50,313.60

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Solution

The fourth proportional to 129,225.60, 193,694.40 and 50,313.60 is: 75,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,225.60 : 193,694.40 = 50,313.60 : x
  2. Step 2: Convert to fraction form
    129,225.60/193,694.40 = 50,313.60/x
  3. Step 3: Cross multiply
    129,225.60x = 193,694.40 × 50,313.60
  4. Step 4: Simplify right side
    129,225.60x = 9,745,462,563.84
  5. Step 5: Solve for x
    x = 9,745,462,563.84/129,225.60
  6. Step 6: Final answer
    x = 75,414.33

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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.