Finding the Fourth Proportional to 144,835.84, 199,815.68 and 84,397.44
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Solution
The fourth proportional to 144,835.84, 199,815.68 and 84,397.44 is: 116,434.80
Step by Step Solution
- Step 1: Write the proportion equation
144,835.84 : 199,815.68 = 84,397.44 : x - Step 2: Convert to fraction form
144,835.84/199,815.68 = 84,397.44/x - Step 3: Cross multiply
144,835.84x = 199,815.68 × 84,397.44 - Step 4: Simplify right side
144,835.84x = 16,863,931,863.86 - Step 5: Solve for x
x = 16,863,931,863.86/144,835.84 - Step 6: Final answer
x = 116,434.80
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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.