Finding the Fourth Proportional to 112,266.39, 154,923.77 and 66,920.99
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Solution
The fourth proportional to 112,266.39, 154,923.77 and 66,920.99 is: 92,348.66
Step by Step Solution
- Step 1: Write the proportion equation
112,266.39 : 154,923.77 = 66,920.99 : x - Step 2: Convert to fraction form
112,266.39/154,923.77 = 66,920.99/x - Step 3: Cross multiply
112,266.39x = 154,923.77 × 66,920.99 - Step 4: Simplify right side
112,266.39x = 10,367,650,953.71 - Step 5: Solve for x
x = 10,367,650,953.71/112,266.39 - Step 6: Final answer
x = 92,348.66
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1.5x scale
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.