Finding the Fourth Proportional to 111,792.68, 154,270.68 and 61,491.68
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Solution
The fourth proportional to 111,792.68, 154,270.68 and 61,491.68 is: 84,856.75
Step by Step Solution
- Step 1: Write the proportion equation
111,792.68 : 154,270.68 = 61,491.68 : x - Step 2: Convert to fraction form
111,792.68/154,270.68 = 61,491.68/x - Step 3: Cross multiply
111,792.68x = 154,270.68 × 61,491.68 - Step 4: Simplify right side
111,792.68x = 9,486,363,287.94 - Step 5: Solve for x
x = 9,486,363,287.94/111,792.68 - Step 6: Final answer
x = 84,856.75
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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.