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Finding the Fourth Proportional to 122,964.80, 184,447.20 and 80,974.40

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Solution

The fourth proportional to 122,964.80, 184,447.20 and 80,974.40 is: 121,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,964.80 : 184,447.20 = 80,974.40 : x
  2. Step 2: Convert to fraction form
    122,964.80/184,447.20 = 80,974.40/x
  3. Step 3: Cross multiply
    122,964.80x = 184,447.20 × 80,974.40
  4. Step 4: Simplify right side
    122,964.80x = 14,935,501,351.68
  5. Step 5: Solve for x
    x = 14,935,501,351.68/122,964.80
  6. Step 6: Final answer
    x = 121,461.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.