Finding the Fourth Proportional to 107,036.11, 147,638.63 and 68,843.99
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Solution
The fourth proportional to 107,036.11, 147,638.63 and 68,843.99 is: 94,958.91
Step by Step Solution
- Step 1: Write the proportion equation
107,036.11 : 147,638.63 = 68,843.99 : x - Step 2: Convert to fraction form
107,036.11/147,638.63 = 68,843.99/x - Step 3: Cross multiply
107,036.11x = 147,638.63 × 68,843.99 - Step 4: Simplify right side
107,036.11x = 10,164,031,801.25 - Step 5: Solve for x
x = 10,164,031,801.25/107,036.11 - Step 6: Final answer
x = 94,958.91
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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.