Home / 185,413.33-255,868.09-100,530.19

Finding the Fourth Proportional to 185,413.33, 255,868.09 and 100,530.19

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Solution

The fourth proportional to 185,413.33, 255,868.09 and 100,530.19 is: 138,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,413.33 : 255,868.09 = 100,530.19 : x
  2. Step 2: Convert to fraction form
    185,413.33/255,868.09 = 100,530.19/x
  3. Step 3: Cross multiply
    185,413.33x = 255,868.09 × 100,530.19
  4. Step 4: Simplify right side
    185,413.33x = 25,722,467,702.64
  5. Step 5: Solve for x
    x = 25,722,467,702.64/185,413.33
  6. Step 6: Final answer
    x = 138,730.41

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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.