Home / 102,990.20-154,388.10-92,492.60

Finding the Fourth Proportional to 102,990.20, 154,388.10 and 92,492.60

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Solution

The fourth proportional to 102,990.20, 154,388.10 and 92,492.60 is: 138,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,990.20 : 154,388.10 = 92,492.60 : x
  2. Step 2: Convert to fraction form
    102,990.20/154,388.10 = 92,492.60/x
  3. Step 3: Cross multiply
    102,990.20x = 154,388.10 × 92,492.60
  4. Step 4: Simplify right side
    102,990.20x = 14,279,756,778.06
  5. Step 5: Solve for x
    x = 14,279,756,778.06/102,990.20
  6. Step 6: Final answer
    x = 138,651.61

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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.