Finding the Fourth Proportional to 157,935.24, 217,951.02 and 86,316.12
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Solution
The fourth proportional to 157,935.24, 217,951.02 and 86,316.12 is: 119,116.46
Step by Step Solution
- Step 1: Write the proportion equation
157,935.24 : 217,951.02 = 86,316.12 : x - Step 2: Convert to fraction form
157,935.24/217,951.02 = 86,316.12/x - Step 3: Cross multiply
157,935.24x = 217,951.02 × 86,316.12 - Step 4: Simplify right side
157,935.24x = 18,812,686,396.44 - Step 5: Solve for x
x = 18,812,686,396.44/157,935.24 - Step 6: Final answer
x = 119,116.46
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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.