Home / 143,744.70-198,369.87-82,500.72

Finding the Fourth Proportional to 143,744.70, 198,369.87 and 82,500.72

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Solution

The fourth proportional to 143,744.70, 198,369.87 and 82,500.72 is: 113,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,744.70 : 198,369.87 = 82,500.72 : x
  2. Step 2: Convert to fraction form
    143,744.70/198,369.87 = 82,500.72/x
  3. Step 3: Cross multiply
    143,744.70x = 198,369.87 × 82,500.72
  4. Step 4: Simplify right side
    143,744.70x = 16,365,657,101.31
  5. Step 5: Solve for x
    x = 16,365,657,101.31/143,744.70
  6. Step 6: Final answer
    x = 113,852.25

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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.