Home / 140,831.64-194,353.02-80,412.12

Finding the Fourth Proportional to 140,831.64, 194,353.02 and 80,412.12

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Solution

The fourth proportional to 140,831.64, 194,353.02 and 80,412.12 is: 110,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,831.64 : 194,353.02 = 80,412.12 : x
  2. Step 2: Convert to fraction form
    140,831.64/194,353.02 = 80,412.12/x
  3. Step 3: Cross multiply
    140,831.64x = 194,353.02 × 80,412.12
  4. Step 4: Simplify right side
    140,831.64x = 15,628,338,366.60
  5. Step 5: Solve for x
    x = 15,628,338,366.60/140,831.64
  6. Step 6: Final answer
    x = 110,971.78

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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.