Home / 143,010.56-197,356.90-82,586.50

Finding the Fourth Proportional to 143,010.56, 197,356.90 and 82,586.50

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Solution

The fourth proportional to 143,010.56, 197,356.90 and 82,586.50 is: 113,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,010.56 : 197,356.90 = 82,586.50 : x
  2. Step 2: Convert to fraction form
    143,010.56/197,356.90 = 82,586.50/x
  3. Step 3: Cross multiply
    143,010.56x = 197,356.90 × 82,586.50
  4. Step 4: Simplify right side
    143,010.56x = 16,299,015,621.85
  5. Step 5: Solve for x
    x = 16,299,015,621.85/143,010.56
  6. Step 6: Final answer
    x = 113,970.71

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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.