Home / 190,631.52-263,067.48-105,747.84

Finding the Fourth Proportional to 190,631.52, 263,067.48 and 105,747.84

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Solution

The fourth proportional to 190,631.52, 263,067.48 and 105,747.84 is: 145,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,631.52 : 263,067.48 = 105,747.84 : x
  2. Step 2: Convert to fraction form
    190,631.52/263,067.48 = 105,747.84/x
  3. Step 3: Cross multiply
    190,631.52x = 263,067.48 × 105,747.84
  4. Step 4: Simplify right side
    190,631.52x = 27,818,817,784.24
  5. Step 5: Solve for x
    x = 27,818,817,784.24/190,631.52
  6. Step 6: Final answer
    x = 145,929.79

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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.