Home / 186,861.40-280,205.70-81,626.20

Finding the Fourth Proportional to 186,861.40, 280,205.70 and 81,626.20

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Solution

The fourth proportional to 186,861.40, 280,205.70 and 81,626.20 is: 122,401.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,861.40 : 280,205.70 = 81,626.20 : x
  2. Step 2: Convert to fraction form
    186,861.40/280,205.70 = 81,626.20/x
  3. Step 3: Cross multiply
    186,861.40x = 280,205.70 × 81,626.20
  4. Step 4: Simplify right side
    186,861.40x = 22,872,126,509.34
  5. Step 5: Solve for x
    x = 22,872,126,509.34/186,861.40
  6. Step 6: Final answer
    x = 122,401.56

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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.