Home / 156,289-234,719.49-143,113.67

Finding the Fourth Proportional to 156,289, 234,719.49 and 143,113.67

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Solution

The fourth proportional to 156,289, 234,719.49 and 143,113.67 is: 214,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,289 : 234,719.49 = 143,113.67 : x
  2. Step 2: Convert to fraction form
    156,289/234,719.49 = 143,113.67/x
  3. Step 3: Cross multiply
    156,289x = 234,719.49 × 143,113.67
  4. Step 4: Simplify right side
    156,289x = 33,591,567,634.43
  5. Step 5: Solve for x
    x = 33,591,567,634.43/156,289
  6. Step 6: Final answer
    x = 214,932.39

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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.