Home / 95,409.60-131,729.40-85,305.84

Finding the Fourth Proportional to 95,409.60, 131,729.40 and 85,305.84

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Solution

The fourth proportional to 95,409.60, 131,729.40 and 85,305.84 is: 117,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,409.60 : 131,729.40 = 85,305.84 : x
  2. Step 2: Convert to fraction form
    95,409.60/131,729.40 = 85,305.84/x
  3. Step 3: Cross multiply
    95,409.60x = 131,729.40 × 85,305.84
  4. Step 4: Simplify right side
    95,409.60x = 11,237,287,119.70
  5. Step 5: Solve for x
    x = 11,237,287,119.70/95,409.60
  6. Step 6: Final answer
    x = 117,779.42

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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.