Finding the Fourth Proportional to 158,102.22, 218,176.41 and 86,480.70
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Solution
The fourth proportional to 158,102.22, 218,176.41 and 86,480.70 is: 119,340.82
Step by Step Solution
- Step 1: Write the proportion equation
158,102.22 : 218,176.41 = 86,480.70 : x - Step 2: Convert to fraction form
158,102.22/218,176.41 = 86,480.70/x - Step 3: Cross multiply
158,102.22x = 218,176.41 × 86,480.70 - Step 4: Simplify right side
158,102.22x = 18,868,048,660.29 - Step 5: Solve for x
x = 18,868,048,660.29/158,102.22 - Step 6: Final answer
x = 119,340.82
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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.