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Finding the Fourth Proportional to 126,602.80, 189,904.20 and 33,108.55

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Solution

The fourth proportional to 126,602.80, 189,904.20 and 33,108.55 is: 49,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,602.80 : 189,904.20 = 33,108.55 : x
  2. Step 2: Convert to fraction form
    126,602.80/189,904.20 = 33,108.55/x
  3. Step 3: Cross multiply
    126,602.80x = 189,904.20 × 33,108.55
  4. Step 4: Simplify right side
    126,602.80x = 6,287,452,700.91
  5. Step 5: Solve for x
    x = 6,287,452,700.91/126,602.80
  6. Step 6: Final answer
    x = 49,662.83

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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.