Home / 149,623.20-206,491.68-85,983.12

Finding the Fourth Proportional to 149,623.20, 206,491.68 and 85,983.12

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Solution

The fourth proportional to 149,623.20, 206,491.68 and 85,983.12 is: 118,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,623.20 : 206,491.68 = 85,983.12 : x
  2. Step 2: Convert to fraction form
    149,623.20/206,491.68 = 85,983.12/x
  3. Step 3: Cross multiply
    149,623.20x = 206,491.68 × 85,983.12
  4. Step 4: Simplify right side
    149,623.20x = 17,754,798,900.44
  5. Step 5: Solve for x
    x = 17,754,798,900.44/149,623.20
  6. Step 6: Final answer
    x = 118,663.41

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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.