Home / 166,815-230,204.70-91,366.20

Finding the Fourth Proportional to 166,815, 230,204.70 and 91,366.20

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Solution

The fourth proportional to 166,815, 230,204.70 and 91,366.20 is: 126,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,815 : 230,204.70 = 91,366.20 : x
  2. Step 2: Convert to fraction form
    166,815/230,204.70 = 91,366.20/x
  3. Step 3: Cross multiply
    166,815x = 230,204.70 × 91,366.20
  4. Step 4: Simplify right side
    166,815x = 21,032,928,661.14
  5. Step 5: Solve for x
    x = 21,032,928,661.14/166,815
  6. Step 6: Final answer
    x = 126,085.36

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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.