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Finding the Fourth Proportional to 136,995.44, 189,053.01 and 76,566.05

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Solution

The fourth proportional to 136,995.44, 189,053.01 and 76,566.05 is: 105,660.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,995.44 : 189,053.01 = 76,566.05 : x
  2. Step 2: Convert to fraction form
    136,995.44/189,053.01 = 76,566.05/x
  3. Step 3: Cross multiply
    136,995.44x = 189,053.01 × 76,566.05
  4. Step 4: Simplify right side
    136,995.44x = 14,475,042,216.31
  5. Step 5: Solve for x
    x = 14,475,042,216.31/136,995.44
  6. Step 6: Final answer
    x = 105,660.76

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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.