Home / 213,014.14-319,290.15-105,018.34

Finding the Fourth Proportional to 213,014.14, 319,290.15 and 105,018.34

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Solution

The fourth proportional to 213,014.14, 319,290.15 and 105,018.34 is: 157,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,014.14 : 319,290.15 = 105,018.34 : x
  2. Step 2: Convert to fraction form
    213,014.14/319,290.15 = 105,018.34/x
  3. Step 3: Cross multiply
    213,014.14x = 319,290.15 × 105,018.34
  4. Step 4: Simplify right side
    213,014.14x = 33,531,321,531.35
  5. Step 5: Solve for x
    x = 33,531,321,531.35/213,014.14
  6. Step 6: Final answer
    x = 157,413.59

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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.