Home / 190,492.48-285,832.24-76,635.68

Finding the Fourth Proportional to 190,492.48, 285,832.24 and 76,635.68

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Solution

The fourth proportional to 190,492.48, 285,832.24 and 76,635.68 is: 114,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,492.48 : 285,832.24 = 76,635.68 : x
  2. Step 2: Convert to fraction form
    190,492.48/285,832.24 = 76,635.68/x
  3. Step 3: Cross multiply
    190,492.48x = 285,832.24 × 76,635.68
  4. Step 4: Simplify right side
    190,492.48x = 21,904,948,078.32
  5. Step 5: Solve for x
    x = 21,904,948,078.32/190,492.48
  6. Step 6: Final answer
    x = 114,991.14

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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.