Finding the Fourth Proportional to 154,190.02, 212,790.35 and 93,750.65
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Solution
The fourth proportional to 154,190.02, 212,790.35 and 93,750.65 is: 129,380.84
Step by Step Solution
- Step 1: Write the proportion equation
154,190.02 : 212,790.35 = 93,750.65 : x - Step 2: Convert to fraction form
154,190.02/212,790.35 = 93,750.65/x - Step 3: Cross multiply
154,190.02x = 212,790.35 × 93,750.65 - Step 4: Simplify right side
154,190.02x = 19,949,233,157.47 - Step 5: Solve for x
x = 19,949,233,157.47/154,190.02 - Step 6: Final answer
x = 129,380.84
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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.