Finding the Fourth Proportional to 129,625.48, 195,138.51 and 116,590.62
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Solution
The fourth proportional to 129,625.48, 195,138.51 and 116,590.62 is: 175,515.80
Step by Step Solution
- Step 1: Write the proportion equation
129,625.48 : 195,138.51 = 116,590.62 : x - Step 2: Convert to fraction form
129,625.48/195,138.51 = 116,590.62/x - Step 3: Cross multiply
129,625.48x = 195,138.51 × 116,590.62 - Step 4: Simplify right side
129,625.48x = 22,751,319,866.78 - Step 5: Solve for x
x = 22,751,319,866.78/129,625.48 - Step 6: Final answer
x = 175,515.80
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.