Home / 85,185.48-117,446.79-69,815.46

Finding the Fourth Proportional to 85,185.48, 117,446.79 and 69,815.46

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Solution

The fourth proportional to 85,185.48, 117,446.79 and 69,815.46 is: 96,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,185.48 : 117,446.79 = 69,815.46 : x
  2. Step 2: Convert to fraction form
    85,185.48/117,446.79 = 69,815.46/x
  3. Step 3: Cross multiply
    85,185.48x = 117,446.79 × 69,815.46
  4. Step 4: Simplify right side
    85,185.48x = 8,199,601,669.37
  5. Step 5: Solve for x
    x = 8,199,601,669.37/85,185.48
  6. Step 6: Final answer
    x = 96,255.86

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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.