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Finding the Fourth Proportional to 122,860.20, 184,290.30 and 43,980.60

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Solution

The fourth proportional to 122,860.20, 184,290.30 and 43,980.60 is: 65,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,860.20 : 184,290.30 = 43,980.60 : x
  2. Step 2: Convert to fraction form
    122,860.20/184,290.30 = 43,980.60/x
  3. Step 3: Cross multiply
    122,860.20x = 184,290.30 × 43,980.60
  4. Step 4: Simplify right side
    122,860.20x = 8,105,197,968.18
  5. Step 5: Solve for x
    x = 8,105,197,968.18/122,860.20
  6. Step 6: Final answer
    x = 65,970.90

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Similar ratio
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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.