Home / 156,107.13-233,936.52-77,129.10

Finding the Fourth Proportional to 156,107.13, 233,936.52 and 77,129.10

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Solution

The fourth proportional to 156,107.13, 233,936.52 and 77,129.10 is: 115,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,107.13 : 233,936.52 = 77,129.10 : x
  2. Step 2: Convert to fraction form
    156,107.13/233,936.52 = 77,129.10/x
  3. Step 3: Cross multiply
    156,107.13x = 233,936.52 × 77,129.10
  4. Step 4: Simplify right side
    156,107.13x = 18,043,313,244.73
  5. Step 5: Solve for x
    x = 18,043,313,244.73/156,107.13
  6. Step 6: Final answer
    x = 115,582.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.