Finding the Fourth Proportional to 112,251.22, 154,926.45 and 66,931.99
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Solution
The fourth proportional to 112,251.22, 154,926.45 and 66,931.99 is: 92,377.93
Step by Step Solution
- Step 1: Write the proportion equation
112,251.22 : 154,926.45 = 66,931.99 : x - Step 2: Convert to fraction form
112,251.22/154,926.45 = 66,931.99/x - Step 3: Cross multiply
112,251.22x = 154,926.45 × 66,931.99 - Step 4: Simplify right side
112,251.22x = 10,369,535,214.82 - Step 5: Solve for x
x = 10,369,535,214.82/112,251.22 - Step 6: Final answer
x = 92,377.93
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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.