Home / 140,711.26-194,181.86-76,181.18

Finding the Fourth Proportional to 140,711.26, 194,181.86 and 76,181.18

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Solution

The fourth proportional to 140,711.26, 194,181.86 and 76,181.18 is: 105,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,711.26 : 194,181.86 = 76,181.18 : x
  2. Step 2: Convert to fraction form
    140,711.26/194,181.86 = 76,181.18/x
  3. Step 3: Cross multiply
    140,711.26x = 194,181.86 × 76,181.18
  4. Step 4: Simplify right side
    140,711.26x = 14,793,003,229.39
  5. Step 5: Solve for x
    x = 14,793,003,229.39/140,711.26
  6. Step 6: Final answer
    x = 105,130.20

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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.