Home / 171,815.49-237,105.30-100,181.68

Finding the Fourth Proportional to 171,815.49, 237,105.30 and 100,181.68

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Solution

The fourth proportional to 171,815.49, 237,105.30 and 100,181.68 is: 138,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,815.49 : 237,105.30 = 100,181.68 : x
  2. Step 2: Convert to fraction form
    171,815.49/237,105.30 = 100,181.68/x
  3. Step 3: Cross multiply
    171,815.49x = 237,105.30 × 100,181.68
  4. Step 4: Simplify right side
    171,815.49x = 23,753,607,073.82
  5. Step 5: Solve for x
    x = 23,753,607,073.82/171,815.49
  6. Step 6: Final answer
    x = 138,250.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.