Finding the Fourth Proportional to 107,836.79, 148,815.36 and 62,541.63
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Solution
The fourth proportional to 107,836.79, 148,815.36 and 62,541.63 is: 86,307.79
Step by Step Solution
- Step 1: Write the proportion equation
107,836.79 : 148,815.36 = 62,541.63 : x - Step 2: Convert to fraction form
107,836.79/148,815.36 = 62,541.63/x - Step 3: Cross multiply
107,836.79x = 148,815.36 × 62,541.63 - Step 4: Simplify right side
107,836.79x = 9,307,155,183.44 - Step 5: Solve for x
x = 9,307,155,183.44/107,836.79 - Step 6: Final answer
x = 86,307.79
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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.