Finding the Fourth Proportional to 135,166.80, 186,526.86 and 74,735.84
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Solution
The fourth proportional to 135,166.80, 186,526.86 and 74,735.84 is: 103,133.62
Step by Step Solution
- Step 1: Write the proportion equation
135,166.80 : 186,526.86 = 74,735.84 : x - Step 2: Convert to fraction form
135,166.80/186,526.86 = 74,735.84/x - Step 3: Cross multiply
135,166.80x = 186,526.86 × 74,735.84 - Step 4: Simplify right side
135,166.80x = 13,940,241,564.66 - Step 5: Solve for x
x = 13,940,241,564.66/135,166.80 - Step 6: Final answer
x = 103,133.62
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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.