Home / 117,755.37-162,556.07-77,470.83

Finding the Fourth Proportional to 117,755.37, 162,556.07 and 77,470.83

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Solution

The fourth proportional to 117,755.37, 162,556.07 and 77,470.83 is: 106,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,755.37 : 162,556.07 = 77,470.83 : x
  2. Step 2: Convert to fraction form
    117,755.37/162,556.07 = 77,470.83/x
  3. Step 3: Cross multiply
    117,755.37x = 162,556.07 × 77,470.83
  4. Step 4: Simplify right side
    117,755.37x = 12,593,353,277.08
  5. Step 5: Solve for x
    x = 12,593,353,277.08/117,755.37
  6. Step 6: Final answer
    x = 106,945.04

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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.