Finding the Fourth Proportional to 161,537.44, 242,409.84 and 78,386.08
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Solution
The fourth proportional to 161,537.44, 242,409.84 and 78,386.08 is: 117,629.43
Step by Step Solution
- Step 1: Write the proportion equation
161,537.44 : 242,409.84 = 78,386.08 : x - Step 2: Convert to fraction form
161,537.44/242,409.84 = 78,386.08/x - Step 3: Cross multiply
161,537.44x = 242,409.84 × 78,386.08 - Step 4: Simplify right side
161,537.44x = 19,001,557,111.03 - Step 5: Solve for x
x = 19,001,557,111.03/161,537.44 - Step 6: Final answer
x = 117,629.43
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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.