Home / 149,553.17-206,385.83-81,570.14

Finding the Fourth Proportional to 149,553.17, 206,385.83 and 81,570.14

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Solution

The fourth proportional to 149,553.17, 206,385.83 and 81,570.14 is: 112,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,553.17 : 206,385.83 = 81,570.14 : x
  2. Step 2: Convert to fraction form
    149,553.17/206,385.83 = 81,570.14/x
  3. Step 3: Cross multiply
    149,553.17x = 206,385.83 × 81,570.14
  4. Step 4: Simplify right side
    149,553.17x = 16,834,920,687.17
  5. Step 5: Solve for x
    x = 16,834,920,687.17/149,553.17
  6. Step 6: Final answer
    x = 112,568.13

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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.