Home / 131,413.30-197,168.55-42,669.70

Finding the Fourth Proportional to 131,413.30, 197,168.55 and 42,669.70

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Solution

The fourth proportional to 131,413.30, 197,168.55 and 42,669.70 is: 64,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,413.30 : 197,168.55 = 42,669.70 : x
  2. Step 2: Convert to fraction form
    131,413.30/197,168.55 = 42,669.70/x
  3. Step 3: Cross multiply
    131,413.30x = 197,168.55 × 42,669.70
  4. Step 4: Simplify right side
    131,413.30x = 8,413,122,877.94
  5. Step 5: Solve for x
    x = 8,413,122,877.94/131,413.30
  6. Step 6: Final answer
    x = 64,020.33

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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.