Finding the Fourth Proportional to 157,523.74, 217,388.04 and 85,907.68
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Solution
The fourth proportional to 157,523.74, 217,388.04 and 85,907.68 is: 118,555.48
Step by Step Solution
- Step 1: Write the proportion equation
157,523.74 : 217,388.04 = 85,907.68 : x - Step 2: Convert to fraction form
157,523.74/217,388.04 = 85,907.68/x - Step 3: Cross multiply
157,523.74x = 217,388.04 × 85,907.68 - Step 4: Simplify right side
157,523.74x = 18,675,302,176.15 - Step 5: Solve for x
x = 18,675,302,176.15/157,523.74 - Step 6: Final answer
x = 118,555.48
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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.