Home / 122,535.09-183,839.55-43,639.05

Finding the Fourth Proportional to 122,535.09, 183,839.55 and 43,639.05

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Solution

The fourth proportional to 122,535.09, 183,839.55 and 43,639.05 is: 65,471.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,535.09 : 183,839.55 = 43,639.05 : x
  2. Step 2: Convert to fraction form
    122,535.09/183,839.55 = 43,639.05/x
  3. Step 3: Cross multiply
    122,535.09x = 183,839.55 × 43,639.05
  4. Step 4: Simplify right side
    122,535.09x = 8,022,583,314.43
  5. Step 5: Solve for x
    x = 8,022,583,314.43/122,535.09
  6. Step 6: Final answer
    x = 65,471.72

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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.