Finding the Fourth Proportional to 188,436.99, 260,042.94 and 103,554.09
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Solution
The fourth proportional to 188,436.99, 260,042.94 and 103,554.09 is: 142,904.59
Step by Step Solution
- Step 1: Write the proportion equation
188,436.99 : 260,042.94 = 103,554.09 : x - Step 2: Convert to fraction form
188,436.99/260,042.94 = 103,554.09/x - Step 3: Cross multiply
188,436.99x = 260,042.94 × 103,554.09 - Step 4: Simplify right side
188,436.99x = 26,928,510,012.62 - Step 5: Solve for x
x = 26,928,510,012.62/188,436.99 - Step 6: Final answer
x = 142,904.59
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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.