Finding the Fourth Proportional to 122,581.78, 169,170.08 and 92,313.70
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Solution
The fourth proportional to 122,581.78, 169,170.08 and 92,313.70 is: 127,398.35
Step by Step Solution
- Step 1: Write the proportion equation
122,581.78 : 169,170.08 = 92,313.70 : x - Step 2: Convert to fraction form
122,581.78/169,170.08 = 92,313.70/x - Step 3: Cross multiply
122,581.78x = 169,170.08 × 92,313.70 - Step 4: Simplify right side
122,581.78x = 15,616,716,014.10 - Step 5: Solve for x
x = 15,616,716,014.10/122,581.78 - Step 6: Final answer
x = 127,398.35
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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.