Finding the Fourth Proportional to 139,884.43, 209,826.66 and 40,044.99
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Solution
The fourth proportional to 139,884.43, 209,826.66 and 40,044.99 is: 60,067.49
Step by Step Solution
- Step 1: Write the proportion equation
139,884.43 : 209,826.66 = 40,044.99 : x - Step 2: Convert to fraction form
139,884.43/209,826.66 = 40,044.99/x - Step 3: Cross multiply
139,884.43x = 209,826.66 × 40,044.99 - Step 4: Simplify right side
139,884.43x = 8,402,506,501.43 - Step 5: Solve for x
x = 8,402,506,501.43/139,884.43 - Step 6: Final answer
x = 60,067.49
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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.