Finding the Fourth Proportional to 153,646.85, 212,046.57 and 93,232.79
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Solution
The fourth proportional to 153,646.85, 212,046.57 and 93,232.79 is: 128,669.70
Step by Step Solution
- Step 1: Write the proportion equation
153,646.85 : 212,046.57 = 93,232.79 : x - Step 2: Convert to fraction form
153,646.85/212,046.57 = 93,232.79/x - Step 3: Cross multiply
153,646.85x = 212,046.57 × 93,232.79 - Step 4: Simplify right side
153,646.85x = 19,769,693,861.15 - Step 5: Solve for x
x = 19,769,693,861.15/153,646.85 - Step 6: Final answer
x = 128,669.70
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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.