Home / 126,507.26-189,792.05-89,140.32

Finding the Fourth Proportional to 126,507.26, 189,792.05 and 89,140.32

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Solution

The fourth proportional to 126,507.26, 189,792.05 and 89,140.32 is: 133,732.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,507.26 : 189,792.05 = 89,140.32 : x
  2. Step 2: Convert to fraction form
    126,507.26/189,792.05 = 89,140.32/x
  3. Step 3: Cross multiply
    126,507.26x = 189,792.05 × 89,140.32
  4. Step 4: Simplify right side
    126,507.26x = 16,918,123,624.75
  5. Step 5: Solve for x
    x = 16,918,123,624.75/126,507.26
  6. Step 6: Final answer
    x = 133,732.43

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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.