Finding the Fourth Proportional to 147,078.72, 203,175.36 and 131,158.08
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Solution
The fourth proportional to 147,078.72, 203,175.36 and 131,158.08 is: 181,182.50
Step by Step Solution
- Step 1: Write the proportion equation
147,078.72 : 203,175.36 = 131,158.08 : x - Step 2: Convert to fraction form
147,078.72/203,175.36 = 131,158.08/x - Step 3: Cross multiply
147,078.72x = 203,175.36 × 131,158.08 - Step 4: Simplify right side
147,078.72x = 26,648,090,120.91 - Step 5: Solve for x
x = 26,648,090,120.91/147,078.72 - Step 6: Final answer
x = 181,182.50
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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.