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Finding the Fourth Proportional to 126,300.80, 189,604.80 and 94,889.60

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Solution

The fourth proportional to 126,300.80, 189,604.80 and 94,889.60 is: 142,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,300.80 : 189,604.80 = 94,889.60 : x
  2. Step 2: Convert to fraction form
    126,300.80/189,604.80 = 94,889.60/x
  3. Step 3: Cross multiply
    126,300.80x = 189,604.80 × 94,889.60
  4. Step 4: Simplify right side
    126,300.80x = 17,991,523,630.08
  5. Step 5: Solve for x
    x = 17,991,523,630.08/126,300.80
  6. Step 6: Final answer
    x = 142,449.80

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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.