Home / 143,500.41-215,241.91-53,525.78

Finding the Fourth Proportional to 143,500.41, 215,241.91 and 53,525.78

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Solution

The fourth proportional to 143,500.41, 215,241.91 and 53,525.78 is: 80,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,500.41 : 215,241.91 = 53,525.78 : x
  2. Step 2: Convert to fraction form
    143,500.41/215,241.91 = 53,525.78/x
  3. Step 3: Cross multiply
    143,500.41x = 215,241.91 × 53,525.78
  4. Step 4: Simplify right side
    143,500.41x = 11,520,990,718.57
  5. Step 5: Solve for x
    x = 11,520,990,718.57/143,500.41
  6. Step 6: Final answer
    x = 80,285.42

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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.