Home / 109,635.20-164,352-39,497.36

Finding the Fourth Proportional to 109,635.20, 164,352 and 39,497.36

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Solution

The fourth proportional to 109,635.20, 164,352 and 39,497.36 is: 59,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,635.20 : 164,352 = 39,497.36 : x
  2. Step 2: Convert to fraction form
    109,635.20/164,352 = 39,497.36/x
  3. Step 3: Cross multiply
    109,635.20x = 164,352 × 39,497.36
  4. Step 4: Simplify right side
    109,635.20x = 6,491,470,110.72
  5. Step 5: Solve for x
    x = 6,491,470,110.72/109,635.20
  6. Step 6: Final answer
    x = 59,209.73

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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.