Home / 122,919.93-169,629.45-71,942.37

Finding the Fourth Proportional to 122,919.93, 169,629.45 and 71,942.37

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Solution

The fourth proportional to 122,919.93, 169,629.45 and 71,942.37 is: 99,280.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,919.93 : 169,629.45 = 71,942.37 : x
  2. Step 2: Convert to fraction form
    122,919.93/169,629.45 = 71,942.37/x
  3. Step 3: Cross multiply
    122,919.93x = 169,629.45 × 71,942.37
  4. Step 4: Simplify right side
    122,919.93x = 12,203,544,654.80
  5. Step 5: Solve for x
    x = 12,203,544,654.80/122,919.93
  6. Step 6: Final answer
    x = 99,280.44

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1.5x scale

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.