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Finding the Fourth Proportional to 143,871.75, 215,895.11 and 60,765.75

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Solution

The fourth proportional to 143,871.75, 215,895.11 and 60,765.75 is: 91,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,871.75 : 215,895.11 = 60,765.75 : x
  2. Step 2: Convert to fraction form
    143,871.75/215,895.11 = 60,765.75/x
  3. Step 3: Cross multiply
    143,871.75x = 215,895.11 × 60,765.75
  4. Step 4: Simplify right side
    143,871.75x = 13,119,027,976.65
  5. Step 5: Solve for x
    x = 13,119,027,976.65/143,871.75
  6. Step 6: Final answer
    x = 91,185.57

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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.