Home / 143,170.75-214,508.06-86,892.94

Finding the Fourth Proportional to 143,170.75, 214,508.06 and 86,892.94

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Solution

The fourth proportional to 143,170.75, 214,508.06 and 86,892.94 is: 130,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,170.75 : 214,508.06 = 86,892.94 : x
  2. Step 2: Convert to fraction form
    143,170.75/214,508.06 = 86,892.94/x
  3. Step 3: Cross multiply
    143,170.75x = 214,508.06 × 86,892.94
  4. Step 4: Simplify right side
    143,170.75x = 18,639,235,363.85
  5. Step 5: Solve for x
    x = 18,639,235,363.85/143,170.75
  6. Step 6: Final answer
    x = 130,188.85

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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.