Finding the Fourth Proportional to 107,839.69, 148,819.36 and 62,544.53
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Solution
The fourth proportional to 107,839.69, 148,819.36 and 62,544.53 is: 86,311.79
Step by Step Solution
- Step 1: Write the proportion equation
107,839.69 : 148,819.36 = 62,544.53 : x - Step 2: Convert to fraction form
107,839.69/148,819.36 = 62,544.53/x - Step 3: Cross multiply
107,839.69x = 148,819.36 × 62,544.53 - Step 4: Simplify right side
107,839.69x = 9,307,836,926.10 - Step 5: Solve for x
x = 9,307,836,926.10/107,839.69 - Step 6: Final answer
x = 86,311.79
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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.