Home / 140,798.15-194,272.32-80,388.45

Finding the Fourth Proportional to 140,798.15, 194,272.32 and 80,388.45

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Solution

The fourth proportional to 140,798.15, 194,272.32 and 80,388.45 is: 110,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,798.15 : 194,272.32 = 80,388.45 : x
  2. Step 2: Convert to fraction form
    140,798.15/194,272.32 = 80,388.45/x
  3. Step 3: Cross multiply
    140,798.15x = 194,272.32 × 80,388.45
  4. Step 4: Simplify right side
    140,798.15x = 15,617,250,984.16
  5. Step 5: Solve for x
    x = 15,617,250,984.16/140,798.15
  6. Step 6: Final answer
    x = 110,919.43

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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.