Home / 190,821.75-286,363.85-66,162.75

Finding the Fourth Proportional to 190,821.75, 286,363.85 and 66,162.75

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Solution

The fourth proportional to 190,821.75, 286,363.85 and 66,162.75 is: 99,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,821.75 : 286,363.85 = 66,162.75 : x
  2. Step 2: Convert to fraction form
    190,821.75/286,363.85 = 66,162.75/x
  3. Step 3: Cross multiply
    190,821.75x = 286,363.85 × 66,162.75
  4. Step 4: Simplify right side
    190,821.75x = 18,946,619,485.77
  5. Step 5: Solve for x
    x = 18,946,619,485.77/190,821.75
  6. Step 6: Final answer
    x = 99,289.62

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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.