Finding the Fourth Proportional to 143,203.68, 197,625.42 and 86,582.52
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Solution
The fourth proportional to 143,203.68, 197,625.42 and 86,582.52 is: 119,486.50
Step by Step Solution
- Step 1: Write the proportion equation
143,203.68 : 197,625.42 = 86,582.52 : x - Step 2: Convert to fraction form
143,203.68/197,625.42 = 86,582.52/x - Step 3: Cross multiply
143,203.68x = 197,625.42 × 86,582.52 - Step 4: Simplify right side
143,203.68x = 17,110,906,879.66 - Step 5: Solve for x
x = 17,110,906,879.66/143,203.68 - Step 6: Final answer
x = 119,486.50
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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.