Home / 105,539.44-158,317.40-30,660.80

Finding the Fourth Proportional to 105,539.44, 158,317.40 and 30,660.80

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Solution

The fourth proportional to 105,539.44, 158,317.40 and 30,660.80 is: 45,993.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,539.44 : 158,317.40 = 30,660.80 : x
  2. Step 2: Convert to fraction form
    105,539.44/158,317.40 = 30,660.80/x
  3. Step 3: Cross multiply
    105,539.44x = 158,317.40 × 30,660.80
  4. Step 4: Simplify right side
    105,539.44x = 4,854,138,137.92
  5. Step 5: Solve for x
    x = 4,854,138,137.92/105,539.44
  6. Step 6: Final answer
    x = 45,993.59

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1.5x scale

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.