Finding the Fourth Proportional to 144,930.21, 199,911.65 and 104,703.09
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Solution
The fourth proportional to 144,930.21, 199,911.65 and 104,703.09 is: 144,423.77
Step by Step Solution
- Step 1: Write the proportion equation
144,930.21 : 199,911.65 = 104,703.09 : x - Step 2: Convert to fraction form
144,930.21/199,911.65 = 104,703.09/x - Step 3: Cross multiply
144,930.21x = 199,911.65 × 104,703.09 - Step 4: Simplify right side
144,930.21x = 20,931,366,958.48 - Step 5: Solve for x
x = 20,931,366,958.48/144,930.21 - Step 6: Final answer
x = 144,423.77
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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.