Home / 126,632.28-190,013.22-51,807.72

Finding the Fourth Proportional to 126,632.28, 190,013.22 and 51,807.72

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Solution

The fourth proportional to 126,632.28, 190,013.22 and 51,807.72 is: 77,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,632.28 : 190,013.22 = 51,807.72 : x
  2. Step 2: Convert to fraction form
    126,632.28/190,013.22 = 51,807.72/x
  3. Step 3: Cross multiply
    126,632.28x = 190,013.22 × 51,807.72
  4. Step 4: Simplify right side
    126,632.28x = 9,844,151,698.06
  5. Step 5: Solve for x
    x = 9,844,151,698.06/126,632.28
  6. Step 6: Final answer
    x = 77,738.09

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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.