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Finding the Fourth Proportional to 131,418.44, 181,347.21 and 80,410.01

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Solution

The fourth proportional to 131,418.44, 181,347.21 and 80,410.01 is: 110,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,418.44 : 181,347.21 = 80,410.01 : x
  2. Step 2: Convert to fraction form
    131,418.44/181,347.21 = 80,410.01/x
  3. Step 3: Cross multiply
    131,418.44x = 181,347.21 × 80,410.01
  4. Step 4: Simplify right side
    131,418.44x = 14,582,130,062.84
  5. Step 5: Solve for x
    x = 14,582,130,062.84/131,418.44
  6. Step 6: Final answer
    x = 110,959.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.