Finding the Fourth Proportional to 118,974.52, 164,195.40 and 65,269.99
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Solution
The fourth proportional to 118,974.52, 164,195.40 and 65,269.99 is: 90,078.38
Step by Step Solution
- Step 1: Write the proportion equation
118,974.52 : 164,195.40 = 65,269.99 : x - Step 2: Convert to fraction form
118,974.52/164,195.40 = 65,269.99/x - Step 3: Cross multiply
118,974.52x = 164,195.40 × 65,269.99 - Step 4: Simplify right side
118,974.52x = 10,717,032,116.05 - Step 5: Solve for x
x = 10,717,032,116.05/118,974.52 - Step 6: Final answer
x = 90,078.38
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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.