Home / 80,845.60-121,268.40-67,723.60

Finding the Fourth Proportional to 80,845.60, 121,268.40 and 67,723.60

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Solution

The fourth proportional to 80,845.60, 121,268.40 and 67,723.60 is: 101,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,845.60 : 121,268.40 = 67,723.60 : x
  2. Step 2: Convert to fraction form
    80,845.60/121,268.40 = 67,723.60/x
  3. Step 3: Cross multiply
    80,845.60x = 121,268.40 × 67,723.60
  4. Step 4: Simplify right side
    80,845.60x = 8,212,732,614.24
  5. Step 5: Solve for x
    x = 8,212,732,614.24/80,845.60
  6. Step 6: Final answer
    x = 101,585.40

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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.