Finding the Fourth Proportional to 157,644.83, 217,548.07 and 86,026.07
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Solution
The fourth proportional to 157,644.83, 217,548.07 and 86,026.07 is: 118,714.99
Step by Step Solution
- Step 1: Write the proportion equation
157,644.83 : 217,548.07 = 86,026.07 : x - Step 2: Convert to fraction form
157,644.83/217,548.07 = 86,026.07/x - Step 3: Cross multiply
157,644.83x = 217,548.07 × 86,026.07 - Step 4: Simplify right side
157,644.83x = 18,714,804,195.38 - Step 5: Solve for x
x = 18,714,804,195.38/157,644.83 - Step 6: Final answer
x = 118,714.99
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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.