Finding the Fourth Proportional to 135,169.06, 186,445.43 and 86,694.21
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Solution
The fourth proportional to 135,169.06, 186,445.43 and 86,694.21 is: 119,581.65
Step by Step Solution
- Step 1: Write the proportion equation
135,169.06 : 186,445.43 = 86,694.21 : x - Step 2: Convert to fraction form
135,169.06/186,445.43 = 86,694.21/x - Step 3: Cross multiply
135,169.06x = 186,445.43 × 86,694.21 - Step 4: Simplify right side
135,169.06x = 16,163,739,261.96 - Step 5: Solve for x
x = 16,163,739,261.96/135,169.06 - Step 6: Final answer
x = 119,581.65
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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.