Home / 156,919.49-216,546.33-85,301.31

Finding the Fourth Proportional to 156,919.49, 216,546.33 and 85,301.31

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Solution

The fourth proportional to 156,919.49, 216,546.33 and 85,301.31 is: 117,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.49 : 216,546.33 = 85,301.31 : x
  2. Step 2: Convert to fraction form
    156,919.49/216,546.33 = 85,301.31/x
  3. Step 3: Cross multiply
    156,919.49x = 216,546.33 × 85,301.31
  4. Step 4: Simplify right side
    156,919.49x = 18,471,685,624.69
  5. Step 5: Solve for x
    x = 18,471,685,624.69/156,919.49
  6. Step 6: Final answer
    x = 117,714.41

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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.