Home / 122,964.80-184,447.20-87,713.60

Finding the Fourth Proportional to 122,964.80, 184,447.20 and 87,713.60

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Solution

The fourth proportional to 122,964.80, 184,447.20 and 87,713.60 is: 131,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,964.80 : 184,447.20 = 87,713.60 : x
  2. Step 2: Convert to fraction form
    122,964.80/184,447.20 = 87,713.60/x
  3. Step 3: Cross multiply
    122,964.80x = 184,447.20 × 87,713.60
  4. Step 4: Simplify right side
    122,964.80x = 16,178,527,921.92
  5. Step 5: Solve for x
    x = 16,178,527,921.92/122,964.80
  6. Step 6: Final answer
    x = 131,570.40

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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.