Finding the Fourth Proportional to 154,072.58, 212,616.14 and 86,090.09
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Solution
The fourth proportional to 154,072.58, 212,616.14 and 86,090.09 is: 118,802.07
Step by Step Solution
- Step 1: Write the proportion equation
154,072.58 : 212,616.14 = 86,090.09 : x - Step 2: Convert to fraction form
154,072.58/212,616.14 = 86,090.09/x - Step 3: Cross multiply
154,072.58x = 212,616.14 × 86,090.09 - Step 4: Simplify right side
154,072.58x = 18,304,141,134.52 - Step 5: Solve for x
x = 18,304,141,134.52/154,072.58 - Step 6: Final answer
x = 118,802.07
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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.