Home / 120,413.24-166,153.92-66,685.04

Finding the Fourth Proportional to 120,413.24, 166,153.92 and 66,685.04

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Solution

The fourth proportional to 120,413.24, 166,153.92 and 66,685.04 is: 92,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,413.24 : 166,153.92 = 66,685.04 : x
  2. Step 2: Convert to fraction form
    120,413.24/166,153.92 = 66,685.04/x
  3. Step 3: Cross multiply
    120,413.24x = 166,153.92 × 66,685.04
  4. Step 4: Simplify right side
    120,413.24x = 11,079,980,801.36
  5. Step 5: Solve for x
    x = 11,079,980,801.36/120,413.24
  6. Step 6: Final answer
    x = 92,016.30

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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.