Finding the Fourth Proportional to 79,163.10, 118,744.65 and 19,998.94
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Solution
The fourth proportional to 79,163.10, 118,744.65 and 19,998.94 is: 29,998.41
Step by Step Solution
- Step 1: Write the proportion equation
79,163.10 : 118,744.65 = 19,998.94 : x - Step 2: Convert to fraction form
79,163.10/118,744.65 = 19,998.94/x - Step 3: Cross multiply
79,163.10x = 118,744.65 × 19,998.94 - Step 4: Simplify right side
79,163.10x = 2,374,767,130.67 - Step 5: Solve for x
x = 2,374,767,130.67/79,163.10 - Step 6: Final answer
x = 29,998.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.