Home / 137,832.23-190,213.07-77,413.52

Finding the Fourth Proportional to 137,832.23, 190,213.07 and 77,413.52

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Solution

The fourth proportional to 137,832.23, 190,213.07 and 77,413.52 is: 106,833.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,832.23 : 190,213.07 = 77,413.52 : x
  2. Step 2: Convert to fraction form
    137,832.23/190,213.07 = 77,413.52/x
  3. Step 3: Cross multiply
    137,832.23x = 190,213.07 × 77,413.52
  4. Step 4: Simplify right side
    137,832.23x = 14,725,061,960.57
  5. Step 5: Solve for x
    x = 14,725,061,960.57/137,832.23
  6. Step 6: Final answer
    x = 106,833.23

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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.