Home / 156,991.73-216,654.29-89,936.69

Finding the Fourth Proportional to 156,991.73, 216,654.29 and 89,936.69

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Solution

The fourth proportional to 156,991.73, 216,654.29 and 89,936.69 is: 124,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,991.73 : 216,654.29 = 89,936.69 : x
  2. Step 2: Convert to fraction form
    156,991.73/216,654.29 = 89,936.69/x
  3. Step 3: Cross multiply
    156,991.73x = 216,654.29 × 89,936.69
  4. Step 4: Simplify right side
    156,991.73x = 19,485,168,183.95
  5. Step 5: Solve for x
    x = 19,485,168,183.95/156,991.73
  6. Step 6: Final answer
    x = 124,115.89

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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.