Finding the Fourth Proportional to 115,836.96, 159,772.58 and 106,307.63
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Solution
The fourth proportional to 115,836.96, 159,772.58 and 106,307.63 is: 146,628.87
Step by Step Solution
- Step 1: Write the proportion equation
115,836.96 : 159,772.58 = 106,307.63 : x - Step 2: Convert to fraction form
115,836.96/159,772.58 = 106,307.63/x - Step 3: Cross multiply
115,836.96x = 159,772.58 × 106,307.63 - Step 4: Simplify right side
115,836.96x = 16,985,042,988.38 - Step 5: Solve for x
x = 16,985,042,988.38/115,836.96 - Step 6: Final answer
x = 146,628.87
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1.5x scale
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.