Finding the Fourth Proportional to 167,128.18, 230,562.25 and 99,148.05
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Solution
The fourth proportional to 167,128.18, 230,562.25 and 99,148.05 is: 136,780.03
Step by Step Solution
- Step 1: Write the proportion equation
167,128.18 : 230,562.25 = 99,148.05 : x - Step 2: Convert to fraction form
167,128.18/230,562.25 = 99,148.05/x - Step 3: Cross multiply
167,128.18x = 230,562.25 × 99,148.05 - Step 4: Simplify right side
167,128.18x = 22,859,797,243.24 - Step 5: Solve for x
x = 22,859,797,243.24/167,128.18 - Step 6: Final answer
x = 136,780.03
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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.