Home / 186,635.75-280,019.23-81,441.05

Finding the Fourth Proportional to 186,635.75, 280,019.23 and 81,441.05

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Solution

The fourth proportional to 186,635.75, 280,019.23 and 81,441.05 is: 122,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,635.75 : 280,019.23 = 81,441.05 : x
  2. Step 2: Convert to fraction form
    186,635.75/280,019.23 = 81,441.05/x
  3. Step 3: Cross multiply
    186,635.75x = 280,019.23 × 81,441.05
  4. Step 4: Simplify right side
    186,635.75x = 22,805,058,507.69
  5. Step 5: Solve for x
    x = 22,805,058,507.69/186,635.75
  6. Step 6: Final answer
    x = 122,190.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.