Home / 140,725.20-194,199.39-76,194.12

Finding the Fourth Proportional to 140,725.20, 194,199.39 and 76,194.12

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Solution

The fourth proportional to 140,725.20, 194,199.39 and 76,194.12 is: 105,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,725.20 : 194,199.39 = 76,194.12 : x
  2. Step 2: Convert to fraction form
    140,725.20/194,199.39 = 76,194.12/x
  3. Step 3: Cross multiply
    140,725.20x = 194,199.39 × 76,194.12
  4. Step 4: Simplify right side
    140,725.20x = 14,796,851,625.59
  5. Step 5: Solve for x
    x = 14,796,851,625.59/140,725.20
  6. Step 6: Final answer
    x = 105,147.14

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1.5x scale

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.