Finding the Fourth Proportional to 120,899.70, 181,349.55 and 47,027.70
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Solution
The fourth proportional to 120,899.70, 181,349.55 and 47,027.70 is: 70,541.55
Step by Step Solution
- Step 1: Write the proportion equation
120,899.70 : 181,349.55 = 47,027.70 : x - Step 2: Convert to fraction form
120,899.70/181,349.55 = 47,027.70/x - Step 3: Cross multiply
120,899.70x = 181,349.55 × 47,027.70 - Step 4: Simplify right side
120,899.70x = 8,528,452,232.54 - Step 5: Solve for x
x = 8,528,452,232.54/120,899.70 - Step 6: Final answer
x = 70,541.55
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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.