Home / 143,689.56-198,297.70-80,027.35

Finding the Fourth Proportional to 143,689.56, 198,297.70 and 80,027.35

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Solution

The fourth proportional to 143,689.56, 198,297.70 and 80,027.35 is: 110,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,689.56 : 198,297.70 = 80,027.35 : x
  2. Step 2: Convert to fraction form
    143,689.56/198,297.70 = 80,027.35/x
  3. Step 3: Cross multiply
    143,689.56x = 198,297.70 × 80,027.35
  4. Step 4: Simplify right side
    143,689.56x = 15,869,240,311.86
  5. Step 5: Solve for x
    x = 15,869,240,311.86/143,689.56
  6. Step 6: Final answer
    x = 110,441.15

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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.