Finding the Fourth Proportional to 120,725.58, 181,122.93 and 58,431.18
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Solution
The fourth proportional to 120,725.58, 181,122.93 and 58,431.18 is: 87,663.50
Step by Step Solution
- Step 1: Write the proportion equation
120,725.58 : 181,122.93 = 58,431.18 : x - Step 2: Convert to fraction form
120,725.58/181,122.93 = 58,431.18/x - Step 3: Cross multiply
120,725.58x = 181,122.93 × 58,431.18 - Step 4: Simplify right side
120,725.58x = 10,583,226,524.96 - Step 5: Solve for x
x = 10,583,226,524.96/120,725.58 - Step 6: Final answer
x = 87,663.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.