Home / 143,912.92-215,853.90-38,742.52

Finding the Fourth Proportional to 143,912.92, 215,853.90 and 38,742.52

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Solution

The fourth proportional to 143,912.92, 215,853.90 and 38,742.52 is: 58,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,912.92 : 215,853.90 = 38,742.52 : x
  2. Step 2: Convert to fraction form
    143,912.92/215,853.90 = 38,742.52/x
  3. Step 3: Cross multiply
    143,912.92x = 215,853.90 × 38,742.52
  4. Step 4: Simplify right side
    143,912.92x = 8,362,724,037.83
  5. Step 5: Solve for x
    x = 8,362,724,037.83/143,912.92
  6. Step 6: Final answer
    x = 58,109.61

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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.