Finding the Fourth Proportional to 190,431.36, 262,791.36 and 105,547.68
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Solution
The fourth proportional to 190,431.36, 262,791.36 and 105,547.68 is: 145,653.63
Step by Step Solution
- Step 1: Write the proportion equation
190,431.36 : 262,791.36 = 105,547.68 : x - Step 2: Convert to fraction form
190,431.36/262,791.36 = 105,547.68/x - Step 3: Cross multiply
190,431.36x = 262,791.36 × 105,547.68 - Step 4: Simplify right side
190,431.36x = 27,737,018,372.04 - Step 5: Solve for x
x = 27,737,018,372.04/190,431.36 - Step 6: Final answer
x = 145,653.63
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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.