Home / 105,968.23-146,365.53-79,229.32

Finding the Fourth Proportional to 105,968.23, 146,365.53 and 79,229.32

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Solution

The fourth proportional to 105,968.23, 146,365.53 and 79,229.32 is: 109,433.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,968.23 : 146,365.53 = 79,229.32 : x
  2. Step 2: Convert to fraction form
    105,968.23/146,365.53 = 79,229.32/x
  3. Step 3: Cross multiply
    105,968.23x = 146,365.53 × 79,229.32
  4. Step 4: Simplify right side
    105,968.23x = 11,596,441,413.34
  5. Step 5: Solve for x
    x = 11,596,441,413.34/105,968.23
  6. Step 6: Final answer
    x = 109,433.19

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1.5x scale

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.