Finding the Fourth Proportional to 157,805.34, 217,714.95 and 93,260.94
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Solution
The fourth proportional to 157,805.34, 217,714.95 and 93,260.94 is: 128,666.75
Step by Step Solution
- Step 1: Write the proportion equation
157,805.34 : 217,714.95 = 93,260.94 : x - Step 2: Convert to fraction form
157,805.34/217,714.95 = 93,260.94/x - Step 3: Cross multiply
157,805.34x = 217,714.95 × 93,260.94 - Step 4: Simplify right side
157,805.34x = 20,304,300,889.05 - Step 5: Solve for x
x = 20,304,300,889.05/157,805.34 - Step 6: Final answer
x = 128,666.75
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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.