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Finding the Fourth Proportional to 117,689.96, 162,413.01 and 63,974.84

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Solution

The fourth proportional to 117,689.96, 162,413.01 and 63,974.84 is: 88,285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,689.96 : 162,413.01 = 63,974.84 : x
  2. Step 2: Convert to fraction form
    117,689.96/162,413.01 = 63,974.84/x
  3. Step 3: Cross multiply
    117,689.96x = 162,413.01 × 63,974.84
  4. Step 4: Simplify right side
    117,689.96x = 10,390,345,516.60
  5. Step 5: Solve for x
    x = 10,390,345,516.60/117,689.96
  6. Step 6: Final answer
    x = 88,285.74

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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.