Home / 122,789.87-169,449.78-69,074.93

Finding the Fourth Proportional to 122,789.87, 169,449.78 and 69,074.93

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Solution

The fourth proportional to 122,789.87, 169,449.78 and 69,074.93 is: 95,323.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,789.87 : 169,449.78 = 69,074.93 : x
  2. Step 2: Convert to fraction form
    122,789.87/169,449.78 = 69,074.93/x
  3. Step 3: Cross multiply
    122,789.87x = 169,449.78 × 69,074.93
  4. Step 4: Simplify right side
    122,789.87x = 11,704,730,499.39
  5. Step 5: Solve for x
    x = 11,704,730,499.39/122,789.87
  6. Step 6: Final answer
    x = 95,323.26

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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.