Home / 281,961.64-389,107.26-154,637.74

Finding the Fourth Proportional to 281,961.64, 389,107.26 and 154,637.74

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Solution

The fourth proportional to 281,961.64, 389,107.26 and 154,637.74 is: 213,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,961.64 : 389,107.26 = 154,637.74 : x
  2. Step 2: Convert to fraction form
    281,961.64/389,107.26 = 154,637.74/x
  3. Step 3: Cross multiply
    281,961.64x = 389,107.26 × 154,637.74
  4. Step 4: Simplify right side
    281,961.64x = 60,170,667,303.99
  5. Step 5: Solve for x
    x = 60,170,667,303.99/281,961.64
  6. Step 6: Final answer
    x = 213,400.19

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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.