Finding the Fourth Proportional to 161,654.99, 223,090.74 and 90,034.99
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Solution
The fourth proportional to 161,654.99, 223,090.74 and 90,034.99 is: 124,252.11
Step by Step Solution
- Step 1: Write the proportion equation
161,654.99 : 223,090.74 = 90,034.99 : x - Step 2: Convert to fraction form
161,654.99/223,090.74 = 90,034.99/x - Step 3: Cross multiply
161,654.99x = 223,090.74 × 90,034.99 - Step 4: Simplify right side
161,654.99x = 20,085,973,242.15 - Step 5: Solve for x
x = 20,085,973,242.15/161,654.99 - Step 6: Final answer
x = 124,252.11
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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.