Home / 143,249.80-214,875.30-48,480.73

Finding the Fourth Proportional to 143,249.80, 214,875.30 and 48,480.73

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Solution

The fourth proportional to 143,249.80, 214,875.30 and 48,480.73 is: 72,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,249.80 : 214,875.30 = 48,480.73 : x
  2. Step 2: Convert to fraction form
    143,249.80/214,875.30 = 48,480.73/x
  3. Step 3: Cross multiply
    143,249.80x = 214,875.30 × 48,480.73
  4. Step 4: Simplify right side
    143,249.80x = 10,417,311,402.97
  5. Step 5: Solve for x
    x = 10,417,311,402.97/143,249.80
  6. Step 6: Final answer
    x = 72,721.30

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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.