Finding the Fourth Proportional to 139,841.81, 209,764.84 and 34,660.88
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Solution
The fourth proportional to 139,841.81, 209,764.84 and 34,660.88 is: 51,991.85
Step by Step Solution
- Step 1: Write the proportion equation
139,841.81 : 209,764.84 = 34,660.88 : x - Step 2: Convert to fraction form
139,841.81/209,764.84 = 34,660.88/x - Step 3: Cross multiply
139,841.81x = 209,764.84 × 34,660.88 - Step 4: Simplify right side
139,841.81x = 7,270,633,663.59 - Step 5: Solve for x
x = 7,270,633,663.59/139,841.81 - Step 6: Final answer
x = 51,991.85
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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.