Home / 190,955.76-285,997.30-91,185.83

Finding the Fourth Proportional to 190,955.76, 285,997.30 and 91,185.83

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Solution

The fourth proportional to 190,955.76, 285,997.30 and 91,185.83 is: 136,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,955.76 : 285,997.30 = 91,185.83 : x
  2. Step 2: Convert to fraction form
    190,955.76/285,997.30 = 91,185.83/x
  3. Step 3: Cross multiply
    190,955.76x = 285,997.30 × 91,185.83
  4. Step 4: Simplify right side
    190,955.76x = 26,078,901,178.26
  5. Step 5: Solve for x
    x = 26,078,901,178.26/190,955.76
  6. Step 6: Final answer
    x = 136,570.38

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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.