Finding the Fourth Proportional to 147,686.14, 203,804.26 and 84,022.57
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Solution
The fourth proportional to 147,686.14, 203,804.26 and 84,022.57 is: 115,949.66
Step by Step Solution
- Step 1: Write the proportion equation
147,686.14 : 203,804.26 = 84,022.57 : x - Step 2: Convert to fraction form
147,686.14/203,804.26 = 84,022.57/x - Step 3: Cross multiply
147,686.14x = 203,804.26 × 84,022.57 - Step 4: Simplify right side
147,686.14x = 17,124,157,702.15 - Step 5: Solve for x
x = 17,124,157,702.15/147,686.14 - Step 6: Final answer
x = 115,949.66
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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.