Home / 126,255.45-174,463.44-120,105.12

Finding the Fourth Proportional to 126,255.45, 174,463.44 and 120,105.12

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Solution

The fourth proportional to 126,255.45, 174,463.44 and 120,105.12 is: 165,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,255.45 : 174,463.44 = 120,105.12 : x
  2. Step 2: Convert to fraction form
    126,255.45/174,463.44 = 120,105.12/x
  3. Step 3: Cross multiply
    126,255.45x = 174,463.44 × 120,105.12
  4. Step 4: Simplify right side
    126,255.45x = 20,953,952,396.81
  5. Step 5: Solve for x
    x = 20,953,952,396.81/126,255.45
  6. Step 6: Final answer
    x = 165,964.74

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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.