Finding the Fourth Proportional to 135,304.19, 186,716.98 and 74,874.79
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Solution
The fourth proportional to 135,304.19, 186,716.98 and 74,874.79 is: 103,325.66
Step by Step Solution
- Step 1: Write the proportion equation
135,304.19 : 186,716.98 = 74,874.79 : x - Step 2: Convert to fraction form
135,304.19/186,716.98 = 74,874.79/x - Step 3: Cross multiply
135,304.19x = 186,716.98 × 74,874.79 - Step 4: Simplify right side
135,304.19x = 13,980,394,666.93 - Step 5: Solve for x
x = 13,980,394,666.93/135,304.19 - Step 6: Final answer
x = 103,325.66
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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.