Finding the Fourth Proportional to 135,120.24, 186,463.98 and 74,691.99
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Solution
The fourth proportional to 135,120.24, 186,463.98 and 74,691.99 is: 103,073.87
Step by Step Solution
- Step 1: Write the proportion equation
135,120.24 : 186,463.98 = 74,691.99 : x - Step 2: Convert to fraction form
135,120.24/186,463.98 = 74,691.99/x - Step 3: Cross multiply
135,120.24x = 186,463.98 × 74,691.99 - Step 4: Simplify right side
135,120.24x = 13,927,365,729.52 - Step 5: Solve for x
x = 13,927,365,729.52/135,120.24 - Step 6: Final answer
x = 103,073.87
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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.