Finding the Fourth Proportional to 135,278.60, 186,689.97 and 74,848.26
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Solution
The fourth proportional to 135,278.60, 186,689.97 and 74,848.26 is: 103,293.65
Step by Step Solution
- Step 1: Write the proportion equation
135,278.60 : 186,689.97 = 74,848.26 : x - Step 2: Convert to fraction form
135,278.60/186,689.97 = 74,848.26/x - Step 3: Cross multiply
135,278.60x = 186,689.97 × 74,848.26 - Step 4: Simplify right side
135,278.60x = 13,973,419,413.95 - Step 5: Solve for x
x = 13,973,419,413.95/135,278.60 - Step 6: Final answer
x = 103,293.65
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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.