Finding the Fourth Proportional to 118,988.48, 164,193.64 and 67,991.08
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Solution
The fourth proportional to 118,988.48, 164,193.64 and 67,991.08 is: 93,821.71
Step by Step Solution
- Step 1: Write the proportion equation
118,988.48 : 164,193.64 = 67,991.08 : x - Step 2: Convert to fraction form
118,988.48/164,193.64 = 67,991.08/x - Step 3: Cross multiply
118,988.48x = 164,193.64 × 67,991.08 - Step 4: Simplify right side
118,988.48x = 11,163,702,912.73 - Step 5: Solve for x
x = 11,163,702,912.73/118,988.48 - Step 6: Final answer
x = 93,821.71
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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.