Home / 120,662.68-181,054.32-54,150.36

Finding the Fourth Proportional to 120,662.68, 181,054.32 and 54,150.36

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Solution

The fourth proportional to 120,662.68, 181,054.32 and 54,150.36 is: 81,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,662.68 : 181,054.32 = 54,150.36 : x
  2. Step 2: Convert to fraction form
    120,662.68/181,054.32 = 54,150.36/x
  3. Step 3: Cross multiply
    120,662.68x = 181,054.32 × 54,150.36
  4. Step 4: Simplify right side
    120,662.68x = 9,804,156,607.56
  5. Step 5: Solve for x
    x = 9,804,156,607.56/120,662.68
  6. Step 6: Final answer
    x = 81,252.60

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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.