Home / 126,502.77-189,785.30-89,135.82

Finding the Fourth Proportional to 126,502.77, 189,785.30 and 89,135.82

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Solution

The fourth proportional to 126,502.77, 189,785.30 and 89,135.82 is: 133,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,502.77 : 189,785.30 = 89,135.82 : x
  2. Step 2: Convert to fraction form
    126,502.77/189,785.30 = 89,135.82/x
  3. Step 3: Cross multiply
    126,502.77x = 189,785.30 × 89,135.82
  4. Step 4: Simplify right side
    126,502.77x = 16,916,667,893.77
  5. Step 5: Solve for x
    x = 16,916,667,893.77/126,502.77
  6. Step 6: Final answer
    x = 133,725.67

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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.