Home / 189,529.49-284,361.92-81,413.43

Finding the Fourth Proportional to 189,529.49, 284,361.92 and 81,413.43

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Solution

The fourth proportional to 189,529.49, 284,361.92 and 81,413.43 is: 122,149.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,529.49 : 284,361.92 = 81,413.43 : x
  2. Step 2: Convert to fraction form
    189,529.49/284,361.92 = 81,413.43/x
  3. Step 3: Cross multiply
    189,529.49x = 284,361.92 × 81,413.43
  4. Step 4: Simplify right side
    189,529.49x = 23,150,878,861.52
  5. Step 5: Solve for x
    x = 23,150,878,861.52/189,529.49
  6. Step 6: Final answer
    x = 122,149.22

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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.