Home / 140,777.51-194,225.43-80,305.59

Finding the Fourth Proportional to 140,777.51, 194,225.43 and 80,305.59

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Solution

The fourth proportional to 140,777.51, 194,225.43 and 80,305.59 is: 110,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,777.51 : 194,225.43 = 80,305.59 : x
  2. Step 2: Convert to fraction form
    140,777.51/194,225.43 = 80,305.59/x
  3. Step 3: Cross multiply
    140,777.51x = 194,225.43 × 80,305.59
  4. Step 4: Simplify right side
    140,777.51x = 15,597,387,749.15
  5. Step 5: Solve for x
    x = 15,597,387,749.15/140,777.51
  6. Step 6: Final answer
    x = 110,794.60

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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.