Finding the Fourth Proportional to 158,274.46, 218,417.36 and 85,676.99
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Solution
The fourth proportional to 158,274.46, 218,417.36 and 85,676.99 is: 118,233.50
Step by Step Solution
- Step 1: Write the proportion equation
158,274.46 : 218,417.36 = 85,676.99 : x - Step 2: Convert to fraction form
158,274.46/218,417.36 = 85,676.99/x - Step 3: Cross multiply
158,274.46x = 218,417.36 × 85,676.99 - Step 4: Simplify right side
158,274.46x = 18,713,342,158.61 - Step 5: Solve for x
x = 18,713,342,158.61/158,274.46 - Step 6: Final answer
x = 118,233.50
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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.