Home / 143,187.40-214,781.10-73,057.60

Finding the Fourth Proportional to 143,187.40, 214,781.10 and 73,057.60

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Solution

The fourth proportional to 143,187.40, 214,781.10 and 73,057.60 is: 109,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.40 : 214,781.10 = 73,057.60 : x
  2. Step 2: Convert to fraction form
    143,187.40/214,781.10 = 73,057.60/x
  3. Step 3: Cross multiply
    143,187.40x = 214,781.10 × 73,057.60
  4. Step 4: Simplify right side
    143,187.40x = 15,691,391,691.36
  5. Step 5: Solve for x
    x = 15,691,391,691.36/143,187.40
  6. Step 6: Final answer
    x = 109,586.40

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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.