Finding the Fourth Proportional to 147,115.19, 203,012.97 and 83,451.62
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Solution
The fourth proportional to 147,115.19, 203,012.97 and 83,451.62 is: 115,159.83
Step by Step Solution
- Step 1: Write the proportion equation
147,115.19 : 203,012.97 = 83,451.62 : x - Step 2: Convert to fraction form
147,115.19/203,012.97 = 83,451.62/x - Step 3: Cross multiply
147,115.19x = 203,012.97 × 83,451.62 - Step 4: Simplify right side
147,115.19x = 16,941,760,212.45 - Step 5: Solve for x
x = 16,941,760,212.45/147,115.19 - Step 6: Final answer
x = 115,159.83
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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.