Finding the Fourth Proportional to 152,709.08, 210,778.62 and 85,662.68
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Solution
The fourth proportional to 152,709.08, 210,778.62 and 85,662.68 is: 118,236.99
Step by Step Solution
- Step 1: Write the proportion equation
152,709.08 : 210,778.62 = 85,662.68 : x - Step 2: Convert to fraction form
152,709.08/210,778.62 = 85,662.68/x - Step 3: Cross multiply
152,709.08x = 210,778.62 × 85,662.68 - Step 4: Simplify right side
152,709.08x = 18,055,861,475.90 - Step 5: Solve for x
x = 18,055,861,475.90/152,709.08 - Step 6: Final answer
x = 118,236.99
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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.