Home / 127,238.12-190,922.80-52,413.56

Finding the Fourth Proportional to 127,238.12, 190,922.80 and 52,413.56

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Solution

The fourth proportional to 127,238.12, 190,922.80 and 52,413.56 is: 78,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,238.12 : 190,922.80 = 52,413.56 : x
  2. Step 2: Convert to fraction form
    127,238.12/190,922.80 = 52,413.56/x
  3. Step 3: Cross multiply
    127,238.12x = 190,922.80 × 52,413.56
  4. Step 4: Simplify right side
    127,238.12x = 10,006,943,633.17
  5. Step 5: Solve for x
    x = 10,006,943,633.17/127,238.12
  6. Step 6: Final answer
    x = 78,647.37

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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.