Finding the Fourth Proportional to 106,556.52, 146,984.11 and 77,841.06
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Solution
The fourth proportional to 106,556.52, 146,984.11 and 77,841.06 is: 107,373.99
Step by Step Solution
- Step 1: Write the proportion equation
106,556.52 : 146,984.11 = 77,841.06 : x - Step 2: Convert to fraction form
106,556.52/146,984.11 = 77,841.06/x - Step 3: Cross multiply
106,556.52x = 146,984.11 × 77,841.06 - Step 4: Simplify right side
106,556.52x = 11,441,398,925.56 - Step 5: Solve for x
x = 11,441,398,925.56/106,556.52 - Step 6: Final answer
x = 107,373.99
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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.