Home / 111,252.72-166,805.08-71,788.28

Finding the Fourth Proportional to 111,252.72, 166,805.08 and 71,788.28

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Solution

The fourth proportional to 111,252.72, 166,805.08 and 71,788.28 is: 107,634.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,252.72 : 166,805.08 = 71,788.28 : x
  2. Step 2: Convert to fraction form
    111,252.72/166,805.08 = 71,788.28/x
  3. Step 3: Cross multiply
    111,252.72x = 166,805.08 × 71,788.28
  4. Step 4: Simplify right side
    111,252.72x = 11,974,649,788.46
  5. Step 5: Solve for x
    x = 11,974,649,788.46/111,252.72
  6. Step 6: Final answer
    x = 107,634.67

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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.