Finding the Fourth Proportional to 158,465.08, 218,682.12 and 86,847.76
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Solution
The fourth proportional to 158,465.08, 218,682.12 and 86,847.76 is: 119,850.08
Step by Step Solution
- Step 1: Write the proportion equation
158,465.08 : 218,682.12 = 86,847.76 : x - Step 2: Convert to fraction form
158,465.08/218,682.12 = 86,847.76/x - Step 3: Cross multiply
158,465.08x = 218,682.12 × 86,847.76 - Step 4: Simplify right side
158,465.08x = 18,992,052,274.05 - Step 5: Solve for x
x = 18,992,052,274.05/158,465.08 - Step 6: Final answer
x = 119,850.08
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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.