Home / 107,581.05-148,359.95-68,831.13

Finding the Fourth Proportional to 107,581.05, 148,359.95 and 68,831.13

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Solution

The fourth proportional to 107,581.05, 148,359.95 and 68,831.13 is: 94,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,581.05 : 148,359.95 = 68,831.13 : x
  2. Step 2: Convert to fraction form
    107,581.05/148,359.95 = 68,831.13/x
  3. Step 3: Cross multiply
    107,581.05x = 148,359.95 × 68,831.13
  4. Step 4: Simplify right side
    107,581.05x = 10,211,782,787.79
  5. Step 5: Solve for x
    x = 10,211,782,787.79/107,581.05
  6. Step 6: Final answer
    x = 94,921.76

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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.