Home / 128,730.08-192,843.74-61,165.97

Finding the Fourth Proportional to 128,730.08, 192,843.74 and 61,165.97

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Solution

The fourth proportional to 128,730.08, 192,843.74 and 61,165.97 is: 91,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,730.08 : 192,843.74 = 61,165.97 : x
  2. Step 2: Convert to fraction form
    128,730.08/192,843.74 = 61,165.97/x
  3. Step 3: Cross multiply
    128,730.08x = 192,843.74 × 61,165.97
  4. Step 4: Simplify right side
    128,730.08x = 11,795,473,145.48
  5. Step 5: Solve for x
    x = 11,795,473,145.48/128,730.08
  6. Step 6: Final answer
    x = 91,629.51

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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.