Home / 268,164.28-401,634.06-128,021.32

Finding the Fourth Proportional to 268,164.28, 401,634.06 and 128,021.32

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Solution

The fourth proportional to 268,164.28, 401,634.06 and 128,021.32 is: 191,739.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,164.28 : 401,634.06 = 128,021.32 : x
  2. Step 2: Convert to fraction form
    268,164.28/401,634.06 = 128,021.32/x
  3. Step 3: Cross multiply
    268,164.28x = 401,634.06 × 128,021.32
  4. Step 4: Simplify right side
    268,164.28x = 51,417,722,518.16
  5. Step 5: Solve for x
    x = 51,417,722,518.16/268,164.28
  6. Step 6: Final answer
    x = 191,739.64

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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.