Finding the Fourth Proportional to 157,803.08, 217,769.46 and 86,181.80
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Solution
The fourth proportional to 157,803.08, 217,769.46 and 86,181.80 is: 118,931.54
Step by Step Solution
- Step 1: Write the proportion equation
157,803.08 : 217,769.46 = 86,181.80 : x - Step 2: Convert to fraction form
157,803.08/217,769.46 = 86,181.80/x - Step 3: Cross multiply
157,803.08x = 217,769.46 × 86,181.80 - Step 4: Simplify right side
157,803.08x = 18,767,764,047.83 - Step 5: Solve for x
x = 18,767,764,047.83/157,803.08 - Step 6: Final answer
x = 118,931.54
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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.