Home / 156,919.43-216,546.26-85,301.25

Finding the Fourth Proportional to 156,919.43, 216,546.26 and 85,301.25

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Solution

The fourth proportional to 156,919.43, 216,546.26 and 85,301.25 is: 117,714.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.43 : 216,546.26 = 85,301.25 : x
  2. Step 2: Convert to fraction form
    156,919.43/216,546.26 = 85,301.25/x
  3. Step 3: Cross multiply
    156,919.43x = 216,546.26 × 85,301.25
  4. Step 4: Simplify right side
    156,919.43x = 18,471,666,234.32
  5. Step 5: Solve for x
    x = 18,471,666,234.32/156,919.43
  6. Step 6: Final answer
    x = 117,714.34

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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.