Home / 119,112.14-164,375.09-65,400.64

Finding the Fourth Proportional to 119,112.14, 164,375.09 and 65,400.64

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Solution

The fourth proportional to 119,112.14, 164,375.09 and 65,400.64 is: 90,253.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,112.14 : 164,375.09 = 65,400.64 : x
  2. Step 2: Convert to fraction form
    119,112.14/164,375.09 = 65,400.64/x
  3. Step 3: Cross multiply
    119,112.14x = 164,375.09 × 65,400.64
  4. Step 4: Simplify right side
    119,112.14x = 10,750,236,086.06
  5. Step 5: Solve for x
    x = 10,750,236,086.06/119,112.14
  6. Step 6: Final answer
    x = 90,253.07

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1.5x scale

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.