Home / 139,413.36-192,390.74-75,751.24

Finding the Fourth Proportional to 139,413.36, 192,390.74 and 75,751.24

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Solution

The fourth proportional to 139,413.36, 192,390.74 and 75,751.24 is: 104,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,413.36 : 192,390.74 = 75,751.24 : x
  2. Step 2: Convert to fraction form
    139,413.36/192,390.74 = 75,751.24/x
  3. Step 3: Cross multiply
    139,413.36x = 192,390.74 × 75,751.24
  4. Step 4: Simplify right side
    139,413.36x = 14,573,837,119.52
  5. Step 5: Solve for x
    x = 14,573,837,119.52/139,413.36
  6. Step 6: Final answer
    x = 104,536.88

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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.