Home / 156,288-234,717.99-143,112.67

Finding the Fourth Proportional to 156,288, 234,717.99 and 143,112.67

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Solution

The fourth proportional to 156,288, 234,717.99 and 143,112.67 is: 214,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,288 : 234,717.99 = 143,112.67 : x
  2. Step 2: Convert to fraction form
    156,288/234,717.99 = 143,112.67/x
  3. Step 3: Cross multiply
    156,288x = 234,717.99 × 143,112.67
  4. Step 4: Simplify right side
    156,288x = 33,591,118,245.93
  5. Step 5: Solve for x
    x = 33,591,118,245.93/156,288
  6. Step 6: Final answer
    x = 214,930.89

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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.