Home / 254,713.60-381,844.41-128,188.36

Finding the Fourth Proportional to 254,713.60, 381,844.41 and 128,188.36

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Solution

The fourth proportional to 254,713.60, 381,844.41 and 128,188.36 is: 192,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,713.60 : 381,844.41 = 128,188.36 : x
  2. Step 2: Convert to fraction form
    254,713.60/381,844.41 = 128,188.36/x
  3. Step 3: Cross multiply
    254,713.60x = 381,844.41 × 128,188.36
  4. Step 4: Simplify right side
    254,713.60x = 48,948,008,693.07
  5. Step 5: Solve for x
    x = 48,948,008,693.07/254,713.60
  6. Step 6: Final answer
    x = 192,168.81

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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.