Finding the Fourth Proportional to 145,115.70, 217,621.71 and 51,602.82
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Solution
The fourth proportional to 145,115.70, 217,621.71 and 51,602.82 is: 77,385.80
Step by Step Solution
- Step 1: Write the proportion equation
145,115.70 : 217,621.71 = 51,602.82 : x - Step 2: Convert to fraction form
145,115.70/217,621.71 = 51,602.82/x - Step 3: Cross multiply
145,115.70x = 217,621.71 × 51,602.82 - Step 4: Simplify right side
145,115.70x = 11,229,893,929.22 - Step 5: Solve for x
x = 11,229,893,929.22/145,115.70 - Step 6: Final answer
x = 77,385.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.