Finding the Fourth Proportional to 168,383.79, 232,369.16 and 92,931.75
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Solution
The fourth proportional to 168,383.79, 232,369.16 and 92,931.75 is: 128,245.55
Step by Step Solution
- Step 1: Write the proportion equation
168,383.79 : 232,369.16 = 92,931.75 : x - Step 2: Convert to fraction form
168,383.79/232,369.16 = 92,931.75/x - Step 3: Cross multiply
168,383.79x = 232,369.16 × 92,931.75 - Step 4: Simplify right side
168,383.79x = 21,594,472,220.17 - Step 5: Solve for x
x = 21,594,472,220.17/168,383.79 - Step 6: Final answer
x = 128,245.55
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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.