Finding the Fourth Proportional to 139,511.19, 209,299.59 and 43,443.99
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Solution
The fourth proportional to 139,511.19, 209,299.59 and 43,443.99 is: 65,176.20
Step by Step Solution
- Step 1: Write the proportion equation
139,511.19 : 209,299.59 = 43,443.99 : x - Step 2: Convert to fraction form
139,511.19/209,299.59 = 43,443.99/x - Step 3: Cross multiply
139,511.19x = 209,299.59 × 43,443.99 - Step 4: Simplify right side
139,511.19x = 9,092,809,294.96 - Step 5: Solve for x
x = 9,092,809,294.96/139,511.19 - Step 6: Final answer
x = 65,176.20
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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.