Home / 143,209.62-197,607.30-82,768.53

Finding the Fourth Proportional to 143,209.62, 197,607.30 and 82,768.53

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Solution

The fourth proportional to 143,209.62, 197,607.30 and 82,768.53 is: 114,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,209.62 : 197,607.30 = 82,768.53 : x
  2. Step 2: Convert to fraction form
    143,209.62/197,607.30 = 82,768.53/x
  3. Step 3: Cross multiply
    143,209.62x = 197,607.30 × 82,768.53
  4. Step 4: Simplify right side
    143,209.62x = 16,355,666,168.91
  5. Step 5: Solve for x
    x = 16,355,666,168.91/143,209.62
  6. Step 6: Final answer
    x = 114,207.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.