Finding the Fourth Proportional to 104,558.96, 144,292.64 and 56,813.12
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Solution
The fourth proportional to 104,558.96, 144,292.64 and 56,813.12 is: 78,402.80
Step by Step Solution
- Step 1: Write the proportion equation
104,558.96 : 144,292.64 = 56,813.12 : x - Step 2: Convert to fraction form
104,558.96/144,292.64 = 56,813.12/x - Step 3: Cross multiply
104,558.96x = 144,292.64 × 56,813.12 - Step 4: Simplify right side
104,558.96x = 8,197,715,071.44 - Step 5: Solve for x
x = 8,197,715,071.44/104,558.96 - Step 6: Final answer
x = 78,402.80
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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.