Home / 190,326.10-285,466.90-76,469.29

Finding the Fourth Proportional to 190,326.10, 285,466.90 and 76,469.29

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Solution

The fourth proportional to 190,326.10, 285,466.90 and 76,469.29 is: 114,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,326.10 : 285,466.90 = 76,469.29 : x
  2. Step 2: Convert to fraction form
    190,326.10/285,466.90 = 76,469.29/x
  3. Step 3: Cross multiply
    190,326.10x = 285,466.90 × 76,469.29
  4. Step 4: Simplify right side
    190,326.10x = 21,829,449,351.82
  5. Step 5: Solve for x
    x = 21,829,449,351.82/190,326.10
  6. Step 6: Final answer
    x = 114,694.99

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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.