Finding the Fourth Proportional to 104,447.60, 144,136.89 and 56,699.99
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Solution
The fourth proportional to 104,447.60, 144,136.89 and 56,699.99 is: 78,245.55
Step by Step Solution
- Step 1: Write the proportion equation
104,447.60 : 144,136.89 = 56,699.99 : x - Step 2: Convert to fraction form
104,447.60/144,136.89 = 56,699.99/x - Step 3: Cross multiply
104,447.60x = 144,136.89 × 56,699.99 - Step 4: Simplify right side
104,447.60x = 8,172,559,500.95 - Step 5: Solve for x
x = 8,172,559,500.95/104,447.60 - Step 6: Final answer
x = 78,245.55
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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.