Home / 140,720.24-194,194.24-76,190.16

Finding the Fourth Proportional to 140,720.24, 194,194.24 and 76,190.16

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Solution

The fourth proportional to 140,720.24, 194,194.24 and 76,190.16 is: 105,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,720.24 : 194,194.24 = 76,190.16 : x
  2. Step 2: Convert to fraction form
    140,720.24/194,194.24 = 76,190.16/x
  3. Step 3: Cross multiply
    140,720.24x = 194,194.24 × 76,190.16
  4. Step 4: Simplify right side
    140,720.24x = 14,795,690,216.68
  5. Step 5: Solve for x
    x = 14,795,690,216.68/140,720.24
  6. Step 6: Final answer
    x = 105,142.59

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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.