Home / 98,835.98-136,413.04-77,283.08

Finding the Fourth Proportional to 98,835.98, 136,413.04 and 77,283.08

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Solution

The fourth proportional to 98,835.98, 136,413.04 and 77,283.08 is: 106,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,835.98 : 136,413.04 = 77,283.08 : x
  2. Step 2: Convert to fraction form
    98,835.98/136,413.04 = 77,283.08/x
  3. Step 3: Cross multiply
    98,835.98x = 136,413.04 × 77,283.08
  4. Step 4: Simplify right side
    98,835.98x = 10,542,419,883.36
  5. Step 5: Solve for x
    x = 10,542,419,883.36/98,835.98
  6. Step 6: Final answer
    x = 106,665.81

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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.