Finding the Fourth Proportional to 109,742.58, 164,442.15 and 84,843.99
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Solution
The fourth proportional to 109,742.58, 164,442.15 and 84,843.99 is: 127,133.23
Step by Step Solution
- Step 1: Write the proportion equation
109,742.58 : 164,442.15 = 84,843.99 : x - Step 2: Convert to fraction form
109,742.58/164,442.15 = 84,843.99/x - Step 3: Cross multiply
109,742.58x = 164,442.15 × 84,843.99 - Step 4: Simplify right side
109,742.58x = 13,951,928,130.18 - Step 5: Solve for x
x = 13,951,928,130.18/109,742.58 - Step 6: Final answer
x = 127,133.23
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.