Finding the Fourth Proportional to 104,144.79, 143,719.61 and 56,397.99
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Solution
The fourth proportional to 104,144.79, 143,719.61 and 56,397.99 is: 77,829.12
Step by Step Solution
- Step 1: Write the proportion equation
104,144.79 : 143,719.61 = 56,397.99 : x - Step 2: Convert to fraction form
104,144.79/143,719.61 = 56,397.99/x - Step 3: Cross multiply
104,144.79x = 143,719.61 × 56,397.99 - Step 4: Simplify right side
104,144.79x = 8,105,496,845.59 - Step 5: Solve for x
x = 8,105,496,845.59/104,144.79 - Step 6: Final answer
x = 77,829.12
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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.