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Finding the Fourth Proportional to 181,413.69, 250,353.91 and 99,745.40

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Solution

The fourth proportional to 181,413.69, 250,353.91 and 99,745.40 is: 137,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,413.69 : 250,353.91 = 99,745.40 : x
  2. Step 2: Convert to fraction form
    181,413.69/250,353.91 = 99,745.40/x
  3. Step 3: Cross multiply
    181,413.69x = 250,353.91 × 99,745.40
  4. Step 4: Simplify right side
    181,413.69x = 24,971,649,393.38
  5. Step 5: Solve for x
    x = 24,971,649,393.38/181,413.69
  6. Step 6: Final answer
    x = 137,650.30

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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.