Finding the Fourth Proportional to 137,386.40, 189,658.17 and 92,093.99
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Solution
The fourth proportional to 137,386.40, 189,658.17 and 92,093.99 is: 127,133.23
Step by Step Solution
- Step 1: Write the proportion equation
137,386.40 : 189,658.17 = 92,093.99 : x - Step 2: Convert to fraction form
137,386.40/189,658.17 = 92,093.99/x - Step 3: Cross multiply
137,386.40x = 189,658.17 × 92,093.99 - Step 4: Simplify right side
137,386.40x = 17,466,376,663.11 - Step 5: Solve for x
x = 17,466,376,663.11/137,386.40 - Step 6: Final answer
x = 127,133.23
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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.