Home / 156,949.38-216,589.07-85,329.40

Finding the Fourth Proportional to 156,949.38, 216,589.07 and 85,329.40

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Solution

The fourth proportional to 156,949.38, 216,589.07 and 85,329.40 is: 117,753.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,949.38 : 216,589.07 = 85,329.40 : x
  2. Step 2: Convert to fraction form
    156,949.38/216,589.07 = 85,329.40/x
  3. Step 3: Cross multiply
    156,949.38x = 216,589.07 × 85,329.40
  4. Step 4: Simplify right side
    156,949.38x = 18,481,415,389.66
  5. Step 5: Solve for x
    x = 18,481,415,389.66/156,949.38
  6. Step 6: Final answer
    x = 117,753.99

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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.