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Finding the Fourth Proportional to 123,326.40, 184,989.60 and 112,245.60

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Solution

The fourth proportional to 123,326.40, 184,989.60 and 112,245.60 is: 168,368.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,326.40 : 184,989.60 = 112,245.60 : x
  2. Step 2: Convert to fraction form
    123,326.40/184,989.60 = 112,245.60/x
  3. Step 3: Cross multiply
    123,326.40x = 184,989.60 × 112,245.60
  4. Step 4: Simplify right side
    123,326.40x = 20,764,268,645.76
  5. Step 5: Solve for x
    x = 20,764,268,645.76/123,326.40
  6. Step 6: Final answer
    x = 168,368.40

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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.