Home / 127,992.69-176,579.39-80,228.61

Finding the Fourth Proportional to 127,992.69, 176,579.39 and 80,228.61

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Solution

The fourth proportional to 127,992.69, 176,579.39 and 80,228.61 is: 110,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,992.69 : 176,579.39 = 80,228.61 : x
  2. Step 2: Convert to fraction form
    127,992.69/176,579.39 = 80,228.61/x
  3. Step 3: Cross multiply
    127,992.69x = 176,579.39 × 80,228.61
  4. Step 4: Simplify right side
    127,992.69x = 14,166,719,214.92
  5. Step 5: Solve for x
    x = 14,166,719,214.92/127,992.69
  6. Step 6: Final answer
    x = 110,683.81

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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.