Home / 120,413.12-166,179.48-66,703.26

Finding the Fourth Proportional to 120,413.12, 166,179.48 and 66,703.26

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Solution

The fourth proportional to 120,413.12, 166,179.48 and 66,703.26 is: 92,055.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,413.12 : 166,179.48 = 66,703.26 : x
  2. Step 2: Convert to fraction form
    120,413.12/166,179.48 = 66,703.26/x
  3. Step 3: Cross multiply
    120,413.12x = 166,179.48 × 66,703.26
  4. Step 4: Simplify right side
    120,413.12x = 11,084,713,061.10
  5. Step 5: Solve for x
    x = 11,084,713,061.10/120,413.12
  6. Step 6: Final answer
    x = 92,055.69

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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.