Finding the Fourth Proportional to 106,343.14, 159,542.40 and 39,788.47
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Solution
The fourth proportional to 106,343.14, 159,542.40 and 39,788.47 is: 59,693.07
Step by Step Solution
- Step 1: Write the proportion equation
106,343.14 : 159,542.40 = 39,788.47 : x - Step 2: Convert to fraction form
106,343.14/159,542.40 = 39,788.47/x - Step 3: Cross multiply
106,343.14x = 159,542.40 × 39,788.47 - Step 4: Simplify right side
106,343.14x = 6,347,947,996.13 - Step 5: Solve for x
x = 6,347,947,996.13/106,343.14 - Step 6: Final answer
x = 59,693.07
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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.