Home / 141,433.84-195,162.34-81,000.88

Finding the Fourth Proportional to 141,433.84, 195,162.34 and 81,000.88

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Solution

The fourth proportional to 141,433.84, 195,162.34 and 81,000.88 is: 111,771.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,433.84 : 195,162.34 = 81,000.88 : x
  2. Step 2: Convert to fraction form
    141,433.84/195,162.34 = 81,000.88/x
  3. Step 3: Cross multiply
    141,433.84x = 195,162.34 × 81,000.88
  4. Step 4: Simplify right side
    141,433.84x = 15,808,321,282.86
  5. Step 5: Solve for x
    x = 15,808,321,282.86/141,433.84
  6. Step 6: Final answer
    x = 111,771.85

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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.