Finding the Fourth Proportional to 165,967.31, 248,951.11 and 71,135.95
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Solution
The fourth proportional to 165,967.31, 248,951.11 and 71,135.95 is: 106,703.99
Step by Step Solution
- Step 1: Write the proportion equation
165,967.31 : 248,951.11 = 71,135.95 : x - Step 2: Convert to fraction form
165,967.31/248,951.11 = 71,135.95/x - Step 3: Cross multiply
165,967.31x = 248,951.11 × 71,135.95 - Step 4: Simplify right side
165,967.31x = 17,709,372,913.19 - Step 5: Solve for x
x = 17,709,372,913.19/165,967.31 - Step 6: Final answer
x = 106,703.99
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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.