Home / 190,575.88-285,805.26-131,789.32

Finding the Fourth Proportional to 190,575.88, 285,805.26 and 131,789.32

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Solution

The fourth proportional to 190,575.88, 285,805.26 and 131,789.32 is: 197,643.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,575.88 : 285,805.26 = 131,789.32 : x
  2. Step 2: Convert to fraction form
    190,575.88/285,805.26 = 131,789.32/x
  3. Step 3: Cross multiply
    190,575.88x = 285,805.26 × 131,789.32
  4. Step 4: Simplify right side
    190,575.88x = 37,666,080,867.82
  5. Step 5: Solve for x
    x = 37,666,080,867.82/190,575.88
  6. Step 6: Final answer
    x = 197,643.48

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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.