Finding the Fourth Proportional to 131,668.68, 181,702.66 and 74,320.07
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Solution
The fourth proportional to 131,668.68, 181,702.66 and 74,320.07 is: 102,561.63
Step by Step Solution
- Step 1: Write the proportion equation
131,668.68 : 181,702.66 = 74,320.07 : x - Step 2: Convert to fraction form
131,668.68/181,702.66 = 74,320.07/x - Step 3: Cross multiply
131,668.68x = 181,702.66 × 74,320.07 - Step 4: Simplify right side
131,668.68x = 13,504,154,038.79 - Step 5: Solve for x
x = 13,504,154,038.79/131,668.68 - Step 6: Final answer
x = 102,561.63
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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.