Home / 111,413.12-167,225.81-69,165.36

Finding the Fourth Proportional to 111,413.12, 167,225.81 and 69,165.36

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Solution

The fourth proportional to 111,413.12, 167,225.81 and 69,165.36 is: 103,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,413.12 : 167,225.81 = 69,165.36 : x
  2. Step 2: Convert to fraction form
    111,413.12/167,225.81 = 69,165.36/x
  3. Step 3: Cross multiply
    111,413.12x = 167,225.81 × 69,165.36
  4. Step 4: Simplify right side
    111,413.12x = 11,566,233,349.94
  5. Step 5: Solve for x
    x = 11,566,233,349.94/111,413.12
  6. Step 6: Final answer
    x = 103,813.93

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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.