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Finding the Fourth Proportional to 160,837.38, 221,810.27 and 100,413.54

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Solution

The fourth proportional to 160,837.38, 221,810.27 and 100,413.54 is: 138,479.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,837.38 : 221,810.27 = 100,413.54 : x
  2. Step 2: Convert to fraction form
    160,837.38/221,810.27 = 100,413.54/x
  3. Step 3: Cross multiply
    160,837.38x = 221,810.27 × 100,413.54
  4. Step 4: Simplify right side
    160,837.38x = 22,272,753,916.99
  5. Step 5: Solve for x
    x = 22,272,753,916.99/160,837.38
  6. Step 6: Final answer
    x = 138,479.96

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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.