Home / 140,686.11-194,165.32-80,242.90

Finding the Fourth Proportional to 140,686.11, 194,165.32 and 80,242.90

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Solution

The fourth proportional to 140,686.11, 194,165.32 and 80,242.90 is: 110,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,686.11 : 194,165.32 = 80,242.90 : x
  2. Step 2: Convert to fraction form
    140,686.11/194,165.32 = 80,242.90/x
  3. Step 3: Cross multiply
    140,686.11x = 194,165.32 × 80,242.90
  4. Step 4: Simplify right side
    140,686.11x = 15,580,388,356.23
  5. Step 5: Solve for x
    x = 15,580,388,356.23/140,686.11
  6. Step 6: Final answer
    x = 110,745.75

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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.