Finding the Fourth Proportional to 135,343.95, 186,768.75 and 74,910.99
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Solution
The fourth proportional to 135,343.95, 186,768.75 and 74,910.99 is: 103,373.90
Step by Step Solution
- Step 1: Write the proportion equation
135,343.95 : 186,768.75 = 74,910.99 : x - Step 2: Convert to fraction form
135,343.95/186,768.75 = 74,910.99/x - Step 3: Cross multiply
135,343.95x = 186,768.75 × 74,910.99 - Step 4: Simplify right side
135,343.95x = 13,991,031,963.56 - Step 5: Solve for x
x = 13,991,031,963.56/135,343.95 - Step 6: Final answer
x = 103,373.90
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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.