Finding the Fourth Proportional to 157,811.83, 217,776.96 and 86,192.14
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Solution
The fourth proportional to 157,811.83, 217,776.96 and 86,192.14 is: 118,943.32
Step by Step Solution
- Step 1: Write the proportion equation
157,811.83 : 217,776.96 = 86,192.14 : x - Step 2: Convert to fraction form
157,811.83/217,776.96 = 86,192.14/x - Step 3: Cross multiply
157,811.83x = 217,776.96 × 86,192.14 - Step 4: Simplify right side
157,811.83x = 18,770,662,225.09 - Step 5: Solve for x
x = 18,770,662,225.09/157,811.83 - Step 6: Final answer
x = 118,943.32
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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.