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Finding the Fourth Proportional to 126,999, 190,474.09 and 63,802.19

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Solution

The fourth proportional to 126,999, 190,474.09 and 63,802.19 is: 95,691.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,999 : 190,474.09 = 63,802.19 : x
  2. Step 2: Convert to fraction form
    126,999/190,474.09 = 63,802.19/x
  3. Step 3: Cross multiply
    126,999x = 190,474.09 × 63,802.19
  4. Step 4: Simplify right side
    126,999x = 12,152,664,396.94
  5. Step 5: Solve for x
    x = 12,152,664,396.94/126,999
  6. Step 6: Final answer
    x = 95,691.02

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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.