Finding the Fourth Proportional to 157,936.02, 217,951.73 and 86,316.02
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Solution
The fourth proportional to 157,936.02, 217,951.73 and 86,316.02 is: 119,116.12
Step by Step Solution
- Step 1: Write the proportion equation
157,936.02 : 217,951.73 = 86,316.02 : x - Step 2: Convert to fraction form
157,936.02/217,951.73 = 86,316.02/x - Step 3: Cross multiply
157,936.02x = 217,951.73 × 86,316.02 - Step 4: Simplify right side
157,936.02x = 18,812,725,454.13 - Step 5: Solve for x
x = 18,812,725,454.13/157,936.02 - Step 6: Final answer
x = 119,116.12
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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.