Home / 140,732.29-194,161.89-80,259.31

Finding the Fourth Proportional to 140,732.29, 194,161.89 and 80,259.31

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Solution

The fourth proportional to 140,732.29, 194,161.89 and 80,259.31 is: 110,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,732.29 : 194,161.89 = 80,259.31 : x
  2. Step 2: Convert to fraction form
    140,732.29/194,161.89 = 80,259.31/x
  3. Step 3: Cross multiply
    140,732.29x = 194,161.89 × 80,259.31
  4. Step 4: Simplify right side
    140,732.29x = 15,583,299,319.70
  5. Step 5: Solve for x
    x = 15,583,299,319.70/140,732.29
  6. Step 6: Final answer
    x = 110,730.09

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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.