Finding the Fourth Proportional to 120,531.77, 166,335.35 and 69,555.08
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Solution
The fourth proportional to 120,531.77, 166,335.35 and 69,555.08 is: 95,986.88
Step by Step Solution
- Step 1: Write the proportion equation
120,531.77 : 166,335.35 = 69,555.08 : x - Step 2: Convert to fraction form
120,531.77/166,335.35 = 69,555.08/x - Step 3: Cross multiply
120,531.77x = 166,335.35 × 69,555.08 - Step 4: Simplify right side
120,531.77x = 11,569,468,576.08 - Step 5: Solve for x
x = 11,569,468,576.08/120,531.77 - Step 6: Final answer
x = 95,986.88
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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.