Home / 123,628.20-185,831.10-121,295.40

Finding the Fourth Proportional to 123,628.20, 185,831.10 and 121,295.40

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Solution

The fourth proportional to 123,628.20, 185,831.10 and 121,295.40 is: 182,324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,628.20 : 185,831.10 = 121,295.40 : x
  2. Step 2: Convert to fraction form
    123,628.20/185,831.10 = 121,295.40/x
  3. Step 3: Cross multiply
    123,628.20x = 185,831.10 × 121,295.40
  4. Step 4: Simplify right side
    123,628.20x = 22,540,457,606.94
  5. Step 5: Solve for x
    x = 22,540,457,606.94/123,628.20
  6. Step 6: Final answer
    x = 182,324.56

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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.