Home / 126,944.70-190,417.05-115,280.70

Finding the Fourth Proportional to 126,944.70, 190,417.05 and 115,280.70

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Solution

The fourth proportional to 126,944.70, 190,417.05 and 115,280.70 is: 172,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,944.70 : 190,417.05 = 115,280.70 : x
  2. Step 2: Convert to fraction form
    126,944.70/190,417.05 = 115,280.70/x
  3. Step 3: Cross multiply
    126,944.70x = 190,417.05 × 115,280.70
  4. Step 4: Simplify right side
    126,944.70x = 21,951,410,815.94
  5. Step 5: Solve for x
    x = 21,951,410,815.94/126,944.70
  6. Step 6: Final answer
    x = 172,921.05

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1.5x scale

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.