Home / 140,763.69-194,257.05-80,333.13

Finding the Fourth Proportional to 140,763.69, 194,257.05 and 80,333.13

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Solution

The fourth proportional to 140,763.69, 194,257.05 and 80,333.13 is: 110,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,763.69 : 194,257.05 = 80,333.13 : x
  2. Step 2: Convert to fraction form
    140,763.69/194,257.05 = 80,333.13/x
  3. Step 3: Cross multiply
    140,763.69x = 194,257.05 × 80,333.13
  4. Step 4: Simplify right side
    140,763.69x = 15,605,276,851.07
  5. Step 5: Solve for x
    x = 15,605,276,851.07/140,763.69
  6. Step 6: Final answer
    x = 110,861.52

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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.