Home / 140,686.28-194,165.55-80,243.06

Finding the Fourth Proportional to 140,686.28, 194,165.55 and 80,243.06

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Solution

The fourth proportional to 140,686.28, 194,165.55 and 80,243.06 is: 110,745.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,686.28 : 194,165.55 = 80,243.06 : x
  2. Step 2: Convert to fraction form
    140,686.28/194,165.55 = 80,243.06/x
  3. Step 3: Cross multiply
    140,686.28x = 194,165.55 × 80,243.06
  4. Step 4: Simplify right side
    140,686.28x = 15,580,437,477.37
  5. Step 5: Solve for x
    x = 15,580,437,477.37/140,686.28
  6. Step 6: Final answer
    x = 110,745.97

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1.5x scale

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.