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Finding the Fourth Proportional to 126,499.70, 189,749.35 and 33,005.45

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Solution

The fourth proportional to 126,499.70, 189,749.35 and 33,005.45 is: 49,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,499.70 : 189,749.35 = 33,005.45 : x
  2. Step 2: Convert to fraction form
    126,499.70/189,749.35 = 33,005.45/x
  3. Step 3: Cross multiply
    126,499.70x = 189,749.35 × 33,005.45
  4. Step 4: Simplify right side
    126,499.70x = 6,262,762,683.96
  5. Step 5: Solve for x
    x = 6,262,762,683.96/126,499.70
  6. Step 6: Final answer
    x = 49,508.12

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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.