Home / 122,542.14-169,151.60-74,146.56

Finding the Fourth Proportional to 122,542.14, 169,151.60 and 74,146.56

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Solution

The fourth proportional to 122,542.14, 169,151.60 and 74,146.56 is: 102,348.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,542.14 : 169,151.60 = 74,146.56 : x
  2. Step 2: Convert to fraction form
    122,542.14/169,151.60 = 74,146.56/x
  3. Step 3: Cross multiply
    122,542.14x = 169,151.60 × 74,146.56
  4. Step 4: Simplify right side
    122,542.14x = 12,542,009,258.50
  5. Step 5: Solve for x
    x = 12,542,009,258.50/122,542.14
  6. Step 6: Final answer
    x = 102,348.54

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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.