Home / 119,116.43-164,380.20-68,129.09

Finding the Fourth Proportional to 119,116.43, 164,380.20 and 68,129.09

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Solution

The fourth proportional to 119,116.43, 164,380.20 and 68,129.09 is: 94,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,116.43 : 164,380.20 = 68,129.09 : x
  2. Step 2: Convert to fraction form
    119,116.43/164,380.20 = 68,129.09/x
  3. Step 3: Cross multiply
    119,116.43x = 164,380.20 × 68,129.09
  4. Step 4: Simplify right side
    119,116.43x = 11,199,073,632.99
  5. Step 5: Solve for x
    x = 11,199,073,632.99/119,116.43
  6. Step 6: Final answer
    x = 94,017.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.