Home / 141,816.44-195,708.02-78,156.56

Finding the Fourth Proportional to 141,816.44, 195,708.02 and 78,156.56

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Solution

The fourth proportional to 141,816.44, 195,708.02 and 78,156.56 is: 107,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,816.44 : 195,708.02 = 78,156.56 : x
  2. Step 2: Convert to fraction form
    141,816.44/195,708.02 = 78,156.56/x
  3. Step 3: Cross multiply
    141,816.44x = 195,708.02 × 78,156.56
  4. Step 4: Simplify right side
    141,816.44x = 15,295,865,607.61
  5. Step 5: Solve for x
    x = 15,295,865,607.61/141,816.44
  6. Step 6: Final answer
    x = 107,856.79

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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.