Finding the Fourth Proportional to 151,866.18, 209,378.79 and 104,034.06
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Solution
The fourth proportional to 151,866.18, 209,378.79 and 104,034.06 is: 143,432.37
Step by Step Solution
- Step 1: Write the proportion equation
151,866.18 : 209,378.79 = 104,034.06 : x - Step 2: Convert to fraction form
151,866.18/209,378.79 = 104,034.06/x - Step 3: Cross multiply
151,866.18x = 209,378.79 × 104,034.06 - Step 4: Simplify right side
151,866.18x = 21,782,525,601.59 - Step 5: Solve for x
x = 21,782,525,601.59/151,866.18 - Step 6: Final answer
x = 143,432.37
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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.