Home / 103,218.22-142,471.38-67,413.79

Finding the Fourth Proportional to 103,218.22, 142,471.38 and 67,413.79

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Solution

The fourth proportional to 103,218.22, 142,471.38 and 67,413.79 is: 93,050.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,218.22 : 142,471.38 = 67,413.79 : x
  2. Step 2: Convert to fraction form
    103,218.22/142,471.38 = 67,413.79/x
  3. Step 3: Cross multiply
    103,218.22x = 142,471.38 × 67,413.79
  4. Step 4: Simplify right side
    103,218.22x = 9,604,535,692.33
  5. Step 5: Solve for x
    x = 9,604,535,692.33/103,218.22
  6. Step 6: Final answer
    x = 93,050.78

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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.