Home / 203,145.36-280,209.96-127,562.64

Finding the Fourth Proportional to 203,145.36, 280,209.96 and 127,562.64

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Solution

The fourth proportional to 203,145.36, 280,209.96 and 127,562.64 is: 175,954.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,145.36 : 280,209.96 = 127,562.64 : x
  2. Step 2: Convert to fraction form
    203,145.36/280,209.96 = 127,562.64/x
  3. Step 3: Cross multiply
    203,145.36x = 280,209.96 × 127,562.64
  4. Step 4: Simplify right side
    203,145.36x = 35,744,322,251.89
  5. Step 5: Solve for x
    x = 35,744,322,251.89/203,145.36
  6. Step 6: Final answer
    x = 175,954.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.