Finding the Fourth Proportional to 157,606.19, 217,496.29 and 85,986.19
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Solution
The fourth proportional to 157,606.19, 217,496.29 and 85,986.19 is: 118,660.80
Step by Step Solution
- Step 1: Write the proportion equation
157,606.19 : 217,496.29 = 85,986.19 : x - Step 2: Convert to fraction form
157,606.19/217,496.29 = 85,986.19/x - Step 3: Cross multiply
157,606.19x = 217,496.29 × 85,986.19 - Step 4: Simplify right side
157,606.19x = 18,701,677,316.24 - Step 5: Solve for x
x = 18,701,677,316.24/157,606.19 - Step 6: Final answer
x = 118,660.80
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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.