Home / 119,449.56-164,836.80-65,734.68

Finding the Fourth Proportional to 119,449.56, 164,836.80 and 65,734.68

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Solution

The fourth proportional to 119,449.56, 164,836.80 and 65,734.68 is: 90,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,449.56 : 164,836.80 = 65,734.68 : x
  2. Step 2: Convert to fraction form
    119,449.56/164,836.80 = 65,734.68/x
  3. Step 3: Cross multiply
    119,449.56x = 164,836.80 × 65,734.68
  4. Step 4: Simplify right side
    119,449.56x = 10,835,494,300.22
  5. Step 5: Solve for x
    x = 10,835,494,300.22/119,449.56
  6. Step 6: Final answer
    x = 90,711.88

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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.