Finding the Fourth Proportional to 127,409.18, 191,103.98 and 38,663.14
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Solution
The fourth proportional to 127,409.18, 191,103.98 and 38,663.14 is: 57,991.74
Step by Step Solution
- Step 1: Write the proportion equation
127,409.18 : 191,103.98 = 38,663.14 : x - Step 2: Convert to fraction form
127,409.18/191,103.98 = 38,663.14/x - Step 3: Cross multiply
127,409.18x = 191,103.98 × 38,663.14 - Step 4: Simplify right side
127,409.18x = 7,388,679,933.30 - Step 5: Solve for x
x = 7,388,679,933.30/127,409.18 - Step 6: Final answer
x = 57,991.74
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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.