Finding the Fourth Proportional to 102,603.48, 154,138.74 and 74,227.95
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Solution
The fourth proportional to 102,603.48, 154,138.74 and 74,227.95 is: 111,510.86
Step by Step Solution
- Step 1: Write the proportion equation
102,603.48 : 154,138.74 = 74,227.95 : x - Step 2: Convert to fraction form
102,603.48/154,138.74 = 74,227.95/x - Step 3: Cross multiply
102,603.48x = 154,138.74 × 74,227.95 - Step 4: Simplify right side
102,603.48x = 11,441,402,685.78 - Step 5: Solve for x
x = 11,441,402,685.78/102,603.48 - Step 6: Final answer
x = 111,510.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.