Home / 128,268.30-192,074.40-94,807.20

Finding the Fourth Proportional to 128,268.30, 192,074.40 and 94,807.20

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Solution

The fourth proportional to 128,268.30, 192,074.40 and 94,807.20 is: 141,968.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,268.30 : 192,074.40 = 94,807.20 : x
  2. Step 2: Convert to fraction form
    128,268.30/192,074.40 = 94,807.20/x
  3. Step 3: Cross multiply
    128,268.30x = 192,074.40 × 94,807.20
  4. Step 4: Simplify right side
    128,268.30x = 18,210,036,055.68
  5. Step 5: Solve for x
    x = 18,210,036,055.68/128,268.30
  6. Step 6: Final answer
    x = 141,968.33

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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.