Finding the Fourth Proportional to 158,096.05, 218,169.98 and 86,475.44
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Solution
The fourth proportional to 158,096.05, 218,169.98 and 86,475.44 is: 119,334.70
Step by Step Solution
- Step 1: Write the proportion equation
158,096.05 : 218,169.98 = 86,475.44 : x - Step 2: Convert to fraction form
158,096.05/218,169.98 = 86,475.44/x - Step 3: Cross multiply
158,096.05x = 218,169.98 × 86,475.44 - Step 4: Simplify right side
158,096.05x = 18,866,344,582.91 - Step 5: Solve for x
x = 18,866,344,582.91/158,096.05 - Step 6: Final answer
x = 119,334.70
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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.