Home / 119,112.55-164,375.64-65,401.04

Finding the Fourth Proportional to 119,112.55, 164,375.64 and 65,401.04

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Solution

The fourth proportional to 119,112.55, 164,375.64 and 65,401.04 is: 90,253.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,112.55 : 164,375.64 = 65,401.04 : x
  2. Step 2: Convert to fraction form
    119,112.55/164,375.64 = 65,401.04/x
  3. Step 3: Cross multiply
    119,112.55x = 164,375.64 × 65,401.04
  4. Step 4: Simplify right side
    119,112.55x = 10,750,337,806.67
  5. Step 5: Solve for x
    x = 10,750,337,806.67/119,112.55
  6. Step 6: Final answer
    x = 90,253.61

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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.