Finding the Fourth Proportional to 128,883.08, 193,246.97 and 57,792.85
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Solution
The fourth proportional to 128,883.08, 193,246.97 and 57,792.85 is: 86,654.46
Step by Step Solution
- Step 1: Write the proportion equation
128,883.08 : 193,246.97 = 57,792.85 : x - Step 2: Convert to fraction form
128,883.08/193,246.97 = 57,792.85/x - Step 3: Cross multiply
128,883.08x = 193,246.97 × 57,792.85 - Step 4: Simplify right side
128,883.08x = 11,168,293,150.16 - Step 5: Solve for x
x = 11,168,293,150.16/128,883.08 - Step 6: Final answer
x = 86,654.46
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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.