Home / 140,784.89-194,297.07-80,364.62

Finding the Fourth Proportional to 140,784.89, 194,297.07 and 80,364.62

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Solution

The fourth proportional to 140,784.89, 194,297.07 and 80,364.62 is: 110,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,784.89 : 194,297.07 = 80,364.62 : x
  2. Step 2: Convert to fraction form
    140,784.89/194,297.07 = 80,364.62/x
  3. Step 3: Cross multiply
    140,784.89x = 194,297.07 × 80,364.62
  4. Step 4: Simplify right side
    140,784.89x = 15,614,609,226.18
  5. Step 5: Solve for x
    x = 15,614,609,226.18/140,784.89
  6. Step 6: Final answer
    x = 110,911.12

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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.