Home / 122,740.20-169,383.54-80,298.76

Finding the Fourth Proportional to 122,740.20, 169,383.54 and 80,298.76

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Solution

The fourth proportional to 122,740.20, 169,383.54 and 80,298.76 is: 110,813.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,740.20 : 169,383.54 = 80,298.76 : x
  2. Step 2: Convert to fraction form
    122,740.20/169,383.54 = 80,298.76/x
  3. Step 3: Cross multiply
    122,740.20x = 169,383.54 × 80,298.76
  4. Step 4: Simplify right side
    122,740.20x = 13,601,288,226.41
  5. Step 5: Solve for x
    x = 13,601,288,226.41/122,740.20
  6. Step 6: Final answer
    x = 110,813.64

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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.