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Finding the Fourth Proportional to 126,130, 189,195.81 and 32,636.56

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Solution

The fourth proportional to 126,130, 189,195.81 and 32,636.56 is: 48,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,130 : 189,195.81 = 32,636.56 : x
  2. Step 2: Convert to fraction form
    126,130/189,195.81 = 32,636.56/x
  3. Step 3: Cross multiply
    126,130x = 189,195.81 × 32,636.56
  4. Step 4: Simplify right side
    126,130x = 6,174,700,404.81
  5. Step 5: Solve for x
    x = 6,174,700,404.81/126,130
  6. Step 6: Final answer
    x = 48,955.05

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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.