Finding the Fourth Proportional to 115,994.63, 160,069.86 and 68,251.07
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Solution
The fourth proportional to 115,994.63, 160,069.86 and 68,251.07 is: 94,184.87
Step by Step Solution
- Step 1: Write the proportion equation
115,994.63 : 160,069.86 = 68,251.07 : x - Step 2: Convert to fraction form
115,994.63/160,069.86 = 68,251.07/x - Step 3: Cross multiply
115,994.63x = 160,069.86 × 68,251.07 - Step 4: Simplify right side
115,994.63x = 10,924,938,419.40 - Step 5: Solve for x
x = 10,924,938,419.40/115,994.63 - Step 6: Final answer
x = 94,184.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.