Finding the Fourth Proportional to 165,419.56, 248,153.94 and 76,682.03
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Solution
The fourth proportional to 165,419.56, 248,153.94 and 76,682.03 is: 115,034.45
Step by Step Solution
- Step 1: Write the proportion equation
165,419.56 : 248,153.94 = 76,682.03 : x - Step 2: Convert to fraction form
165,419.56/248,153.94 = 76,682.03/x - Step 3: Cross multiply
165,419.56x = 248,153.94 × 76,682.03 - Step 4: Simplify right side
165,419.56x = 19,028,948,492.08 - Step 5: Solve for x
x = 19,028,948,492.08/165,419.56 - Step 6: Final answer
x = 115,034.45
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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.