Finding the Fourth Proportional to 157,557.07, 217,431.35 and 85,937.09
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Solution
The fourth proportional to 157,557.07, 217,431.35 and 85,937.09 is: 118,594.60
Step by Step Solution
- Step 1: Write the proportion equation
157,557.07 : 217,431.35 = 85,937.09 : x - Step 2: Convert to fraction form
157,557.07/217,431.35 = 85,937.09/x - Step 3: Cross multiply
157,557.07x = 217,431.35 × 85,937.09 - Step 4: Simplify right side
157,557.07x = 18,685,417,892.07 - Step 5: Solve for x
x = 18,685,417,892.07/157,557.07 - Step 6: Final answer
x = 118,594.60
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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.