Home / 166,622.76-229,940.10-91,178.28

Finding the Fourth Proportional to 166,622.76, 229,940.10 and 91,178.28

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Solution

The fourth proportional to 166,622.76, 229,940.10 and 91,178.28 is: 125,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,622.76 : 229,940.10 = 91,178.28 : x
  2. Step 2: Convert to fraction form
    166,622.76/229,940.10 = 91,178.28/x
  3. Step 3: Cross multiply
    166,622.76x = 229,940.10 × 91,178.28
  4. Step 4: Simplify right side
    166,622.76x = 20,965,542,821.03
  5. Step 5: Solve for x
    x = 20,965,542,821.03/166,622.76
  6. Step 6: Final answer
    x = 125,826.40

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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.