Home / 187,908.86-259,277.56-111,413.68

Finding the Fourth Proportional to 187,908.86, 259,277.56 and 111,413.68

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Solution

The fourth proportional to 187,908.86, 259,277.56 and 111,413.68 is: 153,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,908.86 : 259,277.56 = 111,413.68 : x
  2. Step 2: Convert to fraction form
    187,908.86/259,277.56 = 111,413.68/x
  3. Step 3: Cross multiply
    187,908.86x = 259,277.56 × 111,413.68
  4. Step 4: Simplify right side
    187,908.86x = 28,887,066,174.29
  5. Step 5: Solve for x
    x = 28,887,066,174.29/187,908.86
  6. Step 6: Final answer
    x = 153,729.13

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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.