Finding the Fourth Proportional to 115,883.69, 159,935.36 and 69,945.70
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Solution
The fourth proportional to 115,883.69, 159,935.36 and 69,945.70 is: 96,534.65
Step by Step Solution
- Step 1: Write the proportion equation
115,883.69 : 159,935.36 = 69,945.70 : x - Step 2: Convert to fraction form
115,883.69/159,935.36 = 69,945.70/x - Step 3: Cross multiply
115,883.69x = 159,935.36 × 69,945.70 - Step 4: Simplify right side
115,883.69x = 11,186,791,103.53 - Step 5: Solve for x
x = 11,186,791,103.53/115,883.69 - Step 6: Final answer
x = 96,534.65
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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.