Home / 187,971.09-259,413.84-107,396.89

Finding the Fourth Proportional to 187,971.09, 259,413.84 and 107,396.89

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Solution

The fourth proportional to 187,971.09, 259,413.84 and 107,396.89 is: 148,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,971.09 : 259,413.84 = 107,396.89 : x
  2. Step 2: Convert to fraction form
    187,971.09/259,413.84 = 107,396.89/x
  3. Step 3: Cross multiply
    187,971.09x = 259,413.84 × 107,396.89
  4. Step 4: Simplify right side
    187,971.09x = 27,860,239,638.96
  5. Step 5: Solve for x
    x = 27,860,239,638.96/187,971.09
  6. Step 6: Final answer
    x = 148,215.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.