Home / 156,943.30-216,579.19-85,325.13

Finding the Fourth Proportional to 156,943.30, 216,579.19 and 85,325.13

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Solution

The fourth proportional to 156,943.30, 216,579.19 and 85,325.13 is: 117,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,943.30 : 216,579.19 = 85,325.13 : x
  2. Step 2: Convert to fraction form
    156,943.30/216,579.19 = 85,325.13/x
  3. Step 3: Cross multiply
    156,943.30x = 216,579.19 × 85,325.13
  4. Step 4: Simplify right side
    156,943.30x = 18,479,647,542.04
  5. Step 5: Solve for x
    x = 18,479,647,542.04/156,943.30
  6. Step 6: Final answer
    x = 117,747.29

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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.