Home / 189,535.21-261,551.73-104,650.45

Finding the Fourth Proportional to 189,535.21, 261,551.73 and 104,650.45

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Solution

The fourth proportional to 189,535.21, 261,551.73 and 104,650.45 is: 144,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,535.21 : 261,551.73 = 104,650.45 : x
  2. Step 2: Convert to fraction form
    189,535.21/261,551.73 = 104,650.45/x
  3. Step 3: Cross multiply
    189,535.21x = 261,551.73 × 104,650.45
  4. Step 4: Simplify right side
    189,535.21x = 27,371,505,981.34
  5. Step 5: Solve for x
    x = 27,371,505,981.34/189,535.21
  6. Step 6: Final answer
    x = 144,413.83

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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.