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Finding the Fourth Proportional to 101,803.74, 140,460.66 and 80,226.60

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Solution

The fourth proportional to 101,803.74, 140,460.66 and 80,226.60 is: 110,690.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,803.74 : 140,460.66 = 80,226.60 : x
  2. Step 2: Convert to fraction form
    101,803.74/140,460.66 = 80,226.60/x
  3. Step 3: Cross multiply
    101,803.74x = 140,460.66 × 80,226.60
  4. Step 4: Simplify right side
    101,803.74x = 11,268,681,185.56
  5. Step 5: Solve for x
    x = 11,268,681,185.56/101,803.74
  6. Step 6: Final answer
    x = 110,690.25

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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.