Home / 140,605.87-194,039.45-80,182.30

Finding the Fourth Proportional to 140,605.87, 194,039.45 and 80,182.30

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Solution

The fourth proportional to 140,605.87, 194,039.45 and 80,182.30 is: 110,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,605.87 : 194,039.45 = 80,182.30 : x
  2. Step 2: Convert to fraction form
    140,605.87/194,039.45 = 80,182.30/x
  3. Step 3: Cross multiply
    140,605.87x = 194,039.45 × 80,182.30
  4. Step 4: Simplify right side
    140,605.87x = 15,558,529,391.74
  5. Step 5: Solve for x
    x = 15,558,529,391.74/140,605.87
  6. Step 6: Final answer
    x = 110,653.48

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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.