Finding the Fourth Proportional to 165,988.36, 229,063.62 and 90,536.68
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Solution
The fourth proportional to 165,988.36, 229,063.62 and 90,536.68 is: 124,940.45
Step by Step Solution
- Step 1: Write the proportion equation
165,988.36 : 229,063.62 = 90,536.68 : x - Step 2: Convert to fraction form
165,988.36/229,063.62 = 90,536.68/x - Step 3: Cross multiply
165,988.36x = 229,063.62 × 90,536.68 - Step 4: Simplify right side
165,988.36x = 20,738,659,663.58 - Step 5: Solve for x
x = 20,738,659,663.58/165,988.36 - Step 6: Final answer
x = 124,940.45
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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.