Finding the Fourth Proportional to 135,054.97, 186,377.52 and 74,625.09
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Solution
The fourth proportional to 135,054.97, 186,377.52 and 74,625.09 is: 102,983.54
Step by Step Solution
- Step 1: Write the proportion equation
135,054.97 : 186,377.52 = 74,625.09 : x - Step 2: Convert to fraction form
135,054.97/186,377.52 = 74,625.09/x - Step 3: Cross multiply
135,054.97x = 186,377.52 × 74,625.09 - Step 4: Simplify right side
135,054.97x = 13,908,439,203.98 - Step 5: Solve for x
x = 13,908,439,203.98/135,054.97 - Step 6: Final answer
x = 102,983.54
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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.