Home / 190,694.52-285,987.24-76,842

Finding the Fourth Proportional to 190,694.52, 285,987.24 and 76,842

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Solution

The fourth proportional to 190,694.52, 285,987.24 and 76,842 is: 115,241.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,694.52 : 285,987.24 = 76,842 : x
  2. Step 2: Convert to fraction form
    190,694.52/285,987.24 = 76,842/x
  3. Step 3: Cross multiply
    190,694.52x = 285,987.24 × 76,842
  4. Step 4: Simplify right side
    190,694.52x = 21,975,831,496.08
  5. Step 5: Solve for x
    x = 21,975,831,496.08/190,694.52
  6. Step 6: Final answer
    x = 115,241.02

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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.