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Finding the Fourth Proportional to 173,413.85, 260,117.15 and 79,919.60

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Solution

The fourth proportional to 173,413.85, 260,117.15 and 79,919.60 is: 119,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,413.85 : 260,117.15 = 79,919.60 : x
  2. Step 2: Convert to fraction form
    173,413.85/260,117.15 = 79,919.60/x
  3. Step 3: Cross multiply
    173,413.85x = 260,117.15 × 79,919.60
  4. Step 4: Simplify right side
    173,413.85x = 20,788,456,880.96
  5. Step 5: Solve for x
    x = 20,788,456,880.96/173,413.85
  6. Step 6: Final answer
    x = 119,877.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.