Finding the Fourth Proportional to 157,544.08, 217,412.64 and 85,923.88
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Solution
The fourth proportional to 157,544.08, 217,412.64 and 85,923.88 is: 118,575.94
Step by Step Solution
- Step 1: Write the proportion equation
157,544.08 : 217,412.64 = 85,923.88 : x - Step 2: Convert to fraction form
157,544.08/217,412.64 = 85,923.88/x - Step 3: Cross multiply
157,544.08x = 217,412.64 × 85,923.88 - Step 4: Simplify right side
157,544.08x = 18,680,937,589.84 - Step 5: Solve for x
x = 18,680,937,589.84/157,544.08 - Step 6: Final answer
x = 118,575.94
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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.