Home / 109,965.03-164,855.21-76,586.55

Finding the Fourth Proportional to 109,965.03, 164,855.21 and 76,586.55

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Solution

The fourth proportional to 109,965.03, 164,855.21 and 76,586.55 is: 114,815.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,965.03 : 164,855.21 = 76,586.55 : x
  2. Step 2: Convert to fraction form
    109,965.03/164,855.21 = 76,586.55/x
  3. Step 3: Cross multiply
    109,965.03x = 164,855.21 × 76,586.55
  4. Step 4: Simplify right side
    109,965.03x = 12,625,691,400.49
  5. Step 5: Solve for x
    x = 12,625,691,400.49/109,965.03
  6. Step 6: Final answer
    x = 114,815.51

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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.