Home / 109,614.20-164,421.30-39,495.80

Finding the Fourth Proportional to 109,614.20, 164,421.30 and 39,495.80

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Solution

The fourth proportional to 109,614.20, 164,421.30 and 39,495.80 is: 59,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,614.20 : 164,421.30 = 39,495.80 : x
  2. Step 2: Convert to fraction form
    109,614.20/164,421.30 = 39,495.80/x
  3. Step 3: Cross multiply
    109,614.20x = 164,421.30 × 39,495.80
  4. Step 4: Simplify right side
    109,614.20x = 6,493,950,780.54
  5. Step 5: Solve for x
    x = 6,493,950,780.54/109,614.20
  6. Step 6: Final answer
    x = 59,243.70

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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.