Home / 120,236.58-165,922.44-65,788.50

Finding the Fourth Proportional to 120,236.58, 165,922.44 and 65,788.50

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Solution

The fourth proportional to 120,236.58, 165,922.44 and 65,788.50 is: 90,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,236.58 : 165,922.44 = 65,788.50 : x
  2. Step 2: Convert to fraction form
    120,236.58/165,922.44 = 65,788.50/x
  3. Step 3: Cross multiply
    120,236.58x = 165,922.44 × 65,788.50
  4. Step 4: Simplify right side
    120,236.58x = 10,915,788,443.94
  5. Step 5: Solve for x
    x = 10,915,788,443.94/120,236.58
  6. Step 6: Final answer
    x = 90,785.92

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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.