Home / 143,180.14-214,768.84-87,035.76

Finding the Fourth Proportional to 143,180.14, 214,768.84 and 87,035.76

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Solution

The fourth proportional to 143,180.14, 214,768.84 and 87,035.76 is: 130,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,180.14 : 214,768.84 = 87,035.76 : x
  2. Step 2: Convert to fraction form
    143,180.14/214,768.84 = 87,035.76/x
  3. Step 3: Cross multiply
    143,180.14x = 214,768.84 × 87,035.76
  4. Step 4: Simplify right side
    143,180.14x = 18,692,569,213.72
  5. Step 5: Solve for x
    x = 18,692,569,213.72/143,180.14
  6. Step 6: Final answer
    x = 130,552.81

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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.