Home / 149,823.45-206,748.45-81,839.44

Finding the Fourth Proportional to 149,823.45, 206,748.45 and 81,839.44

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Solution

The fourth proportional to 149,823.45, 206,748.45 and 81,839.44 is: 112,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,823.45 : 206,748.45 = 81,839.44 : x
  2. Step 2: Convert to fraction form
    149,823.45/206,748.45 = 81,839.44/x
  3. Step 3: Cross multiply
    149,823.45x = 206,748.45 × 81,839.44
  4. Step 4: Simplify right side
    149,823.45x = 16,920,177,045.82
  5. Step 5: Solve for x
    x = 16,920,177,045.82/149,823.45
  6. Step 6: Final answer
    x = 112,934.11

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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.