Finding the Fourth Proportional to 135,053.97, 186,376.14 and 74,624.09
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Solution
The fourth proportional to 135,053.97, 186,376.14 and 74,624.09 is: 102,982.15
Step by Step Solution
- Step 1: Write the proportion equation
135,053.97 : 186,376.14 = 74,624.09 : x - Step 2: Convert to fraction form
135,053.97/186,376.14 = 74,624.09/x - Step 3: Cross multiply
135,053.97x = 186,376.14 × 74,624.09 - Step 4: Simplify right side
135,053.97x = 13,908,148,913.33 - Step 5: Solve for x
x = 13,908,148,913.33/135,053.97 - Step 6: Final answer
x = 102,982.15
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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.