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Finding the Fourth Proportional to 85,268.94, 117,601.79 and 75,037.89

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Solution

The fourth proportional to 85,268.94, 117,601.79 and 75,037.89 is: 103,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,268.94 : 117,601.79 = 75,037.89 : x
  2. Step 2: Convert to fraction form
    85,268.94/117,601.79 = 75,037.89/x
  3. Step 3: Cross multiply
    85,268.94x = 117,601.79 × 75,037.89
  4. Step 4: Simplify right side
    85,268.94x = 8,824,589,806.63
  5. Step 5: Solve for x
    x = 8,824,589,806.63/85,268.94
  6. Step 6: Final answer
    x = 103,491.26

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1.5x scale

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.