Finding the Fourth Proportional to 132,057.40, 197,648.70 and 121,559.80
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Solution
The fourth proportional to 132,057.40, 197,648.70 and 121,559.80 is: 181,937.07
Step by Step Solution
- Step 1: Write the proportion equation
132,057.40 : 197,648.70 = 121,559.80 : x - Step 2: Convert to fraction form
132,057.40/197,648.70 = 121,559.80/x - Step 3: Cross multiply
132,057.40x = 197,648.70 × 121,559.80 - Step 4: Simplify right side
132,057.40x = 24,026,136,442.26 - Step 5: Solve for x
x = 24,026,136,442.26/132,057.40 - Step 6: Final answer
x = 181,937.07
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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.