Finding the Fourth Proportional to 165,243.09, 228,034.87 and 93,636.80
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Solution
The fourth proportional to 165,243.09, 228,034.87 and 93,636.80 is: 129,218.45
Step by Step Solution
- Step 1: Write the proportion equation
165,243.09 : 228,034.87 = 93,636.80 : x - Step 2: Convert to fraction form
165,243.09/228,034.87 = 93,636.80/x - Step 3: Cross multiply
165,243.09x = 228,034.87 × 93,636.80 - Step 4: Simplify right side
165,243.09x = 21,352,455,515.22 - Step 5: Solve for x
x = 21,352,455,515.22/165,243.09 - Step 6: Final answer
x = 129,218.45
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1.5x scale
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.