Finding the Fourth Proportional to 118,590.24, 163,703.22 and 80,402.09
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Solution
The fourth proportional to 118,590.24, 163,703.22 and 80,402.09 is: 110,987.89
Step by Step Solution
- Step 1: Write the proportion equation
118,590.24 : 163,703.22 = 80,402.09 : x - Step 2: Convert to fraction form
118,590.24/163,703.22 = 80,402.09/x - Step 3: Cross multiply
118,590.24x = 163,703.22 × 80,402.09 - Step 4: Simplify right side
118,590.24x = 13,162,081,027.73 - Step 5: Solve for x
x = 13,162,081,027.73/118,590.24 - Step 6: Final answer
x = 110,987.89
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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.