Finding the Fourth Proportional to 107,838.63, 148,817.09 and 62,542.82
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Solution
The fourth proportional to 107,838.63, 148,817.09 and 62,542.82 is: 86,308.95
Step by Step Solution
- Step 1: Write the proportion equation
107,838.63 : 148,817.09 = 62,542.82 : x - Step 2: Convert to fraction form
107,838.63/148,817.09 = 62,542.82/x - Step 3: Cross multiply
107,838.63x = 148,817.09 × 62,542.82 - Step 4: Simplify right side
107,838.63x = 9,307,439,415.99 - Step 5: Solve for x
x = 9,307,439,415.99/107,838.63 - Step 6: Final answer
x = 86,308.95
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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.