Finding the Fourth Proportional to 121,739.88, 182,618.99 and 36,343.98
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Solution
The fourth proportional to 121,739.88, 182,618.99 and 36,343.98 is: 54,518.71
Step by Step Solution
- Step 1: Write the proportion equation
121,739.88 : 182,618.99 = 36,343.98 : x - Step 2: Convert to fraction form
121,739.88/182,618.99 = 36,343.98/x - Step 3: Cross multiply
121,739.88x = 182,618.99 × 36,343.98 - Step 4: Simplify right side
121,739.88x = 6,637,100,920.18 - Step 5: Solve for x
x = 6,637,100,920.18/121,739.88 - Step 6: Final answer
x = 54,518.71
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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.