Home / 128,268.96-192,403.44-34,772.28

Finding the Fourth Proportional to 128,268.96, 192,403.44 and 34,772.28

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Solution

The fourth proportional to 128,268.96, 192,403.44 and 34,772.28 is: 52,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,268.96 : 192,403.44 = 34,772.28 : x
  2. Step 2: Convert to fraction form
    128,268.96/192,403.44 = 34,772.28/x
  3. Step 3: Cross multiply
    128,268.96x = 192,403.44 × 34,772.28
  4. Step 4: Simplify right side
    128,268.96x = 6,690,306,288.64
  5. Step 5: Solve for x
    x = 6,690,306,288.64/128,268.96
  6. Step 6: Final answer
    x = 52,158.42

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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.