Finding the Fourth Proportional to 121,409.30, 167,539.17 and 67,700.18
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Solution
The fourth proportional to 121,409.30, 167,539.17 and 67,700.18 is: 93,423.09
Step by Step Solution
- Step 1: Write the proportion equation
121,409.30 : 167,539.17 = 67,700.18 : x - Step 2: Convert to fraction form
121,409.30/167,539.17 = 67,700.18/x - Step 3: Cross multiply
121,409.30x = 167,539.17 × 67,700.18 - Step 4: Simplify right side
121,409.30x = 11,342,431,966.05 - Step 5: Solve for x
x = 11,342,431,966.05/121,409.30 - Step 6: Final answer
x = 93,423.09
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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.