Finding the Fourth Proportional to 158,454.26, 218,668.58 and 86,832.74
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Solution
The fourth proportional to 158,454.26, 218,668.58 and 86,832.74 is: 119,830.11
Step by Step Solution
- Step 1: Write the proportion equation
158,454.26 : 218,668.58 = 86,832.74 : x - Step 2: Convert to fraction form
158,454.26/218,668.58 = 86,832.74/x - Step 3: Cross multiply
158,454.26x = 218,668.58 × 86,832.74 - Step 4: Simplify right side
158,454.26x = 18,987,591,953.31 - Step 5: Solve for x
x = 18,987,591,953.31/158,454.26 - Step 6: Final answer
x = 119,830.11
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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.