Home / 140,860.29-194,386.77-80,449.86

Finding the Fourth Proportional to 140,860.29, 194,386.77 and 80,449.86

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Solution

The fourth proportional to 140,860.29, 194,386.77 and 80,449.86 is: 111,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,860.29 : 194,386.77 = 80,449.86 : x
  2. Step 2: Convert to fraction form
    140,860.29/194,386.77 = 80,449.86/x
  3. Step 3: Cross multiply
    140,860.29x = 194,386.77 × 80,449.86
  4. Step 4: Simplify right side
    140,860.29x = 15,638,388,432.35
  5. Step 5: Solve for x
    x = 15,638,388,432.35/140,860.29
  6. Step 6: Final answer
    x = 111,020.56

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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.