Home / 156,997.12-216,579.82-93,289.80

Finding the Fourth Proportional to 156,997.12, 216,579.82 and 93,289.80

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Solution

The fourth proportional to 156,997.12, 216,579.82 and 93,289.80 is: 128,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,997.12 : 216,579.82 = 93,289.80 : x
  2. Step 2: Convert to fraction form
    156,997.12/216,579.82 = 93,289.80/x
  3. Step 3: Cross multiply
    156,997.12x = 216,579.82 × 93,289.80
  4. Step 4: Simplify right side
    156,997.12x = 20,204,688,091.84
  5. Step 5: Solve for x
    x = 20,204,688,091.84/156,997.12
  6. Step 6: Final answer
    x = 128,694.64

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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.