Finding the Fourth Proportional to 166,021.11, 249,201.16 and 121,515.66
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Solution
The fourth proportional to 166,021.11, 249,201.16 and 121,515.66 is: 182,397.55
Step by Step Solution
- Step 1: Write the proportion equation
166,021.11 : 249,201.16 = 121,515.66 : x - Step 2: Convert to fraction form
166,021.11/249,201.16 = 121,515.66/x - Step 3: Cross multiply
166,021.11x = 249,201.16 × 121,515.66 - Step 4: Simplify right side
166,021.11x = 30,281,843,126.38 - Step 5: Solve for x
x = 30,281,843,126.38/166,021.11 - Step 6: Final answer
x = 182,397.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.