Home / 190,221.91-262,514.48-105,338.97

Finding the Fourth Proportional to 190,221.91, 262,514.48 and 105,338.97

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Solution

The fourth proportional to 190,221.91, 262,514.48 and 105,338.97 is: 145,372.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,221.91 : 262,514.48 = 105,338.97 : x
  2. Step 2: Convert to fraction form
    190,221.91/262,514.48 = 105,338.97/x
  3. Step 3: Cross multiply
    190,221.91x = 262,514.48 × 105,338.97
  4. Step 4: Simplify right side
    190,221.91x = 27,653,004,933.29
  5. Step 5: Solve for x
    x = 27,653,004,933.29/190,221.91
  6. Step 6: Final answer
    x = 145,372.34

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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.