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Finding the Fourth Proportional to 103,869, 155,804.22 and 37,309.68

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Solution

The fourth proportional to 103,869, 155,804.22 and 37,309.68 is: 55,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,869 : 155,804.22 = 37,309.68 : x
  2. Step 2: Convert to fraction form
    103,869/155,804.22 = 37,309.68/x
  3. Step 3: Cross multiply
    103,869x = 155,804.22 × 37,309.68
  4. Step 4: Simplify right side
    103,869x = 5,813,005,590.85
  5. Step 5: Solve for x
    x = 5,813,005,590.85/103,869
  6. Step 6: Final answer
    x = 55,964.78

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1.5x scale

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.