Home / 143,150.58-214,563.87-72,881.46

Finding the Fourth Proportional to 143,150.58, 214,563.87 and 72,881.46

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Solution

The fourth proportional to 143,150.58, 214,563.87 and 72,881.46 is: 109,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,150.58 : 214,563.87 = 72,881.46 : x
  2. Step 2: Convert to fraction form
    143,150.58/214,563.87 = 72,881.46/x
  3. Step 3: Cross multiply
    143,150.58x = 214,563.87 × 72,881.46
  4. Step 4: Simplify right side
    143,150.58x = 15,637,728,108.85
  5. Step 5: Solve for x
    x = 15,637,728,108.85/143,150.58
  6. Step 6: Final answer
    x = 109,239.71

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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.