Home / 120,413.42-166,176.48-72,665.96

Finding the Fourth Proportional to 120,413.42, 166,176.48 and 72,665.96

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Solution

The fourth proportional to 120,413.42, 166,176.48 and 72,665.96 is: 100,282.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,413.42 : 166,176.48 = 72,665.96 : x
  2. Step 2: Convert to fraction form
    120,413.42/166,176.48 = 72,665.96/x
  3. Step 3: Cross multiply
    120,413.42x = 166,176.48 × 72,665.96
  4. Step 4: Simplify right side
    120,413.42x = 12,075,373,448.62
  5. Step 5: Solve for x
    x = 12,075,373,448.62/120,413.42
  6. Step 6: Final answer
    x = 100,282.62

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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.