Finding the Fourth Proportional to 120,313.32, 180,495.08 and 36,070.08
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Solution
The fourth proportional to 120,313.32, 180,495.08 and 36,070.08 is: 54,112.65
Step by Step Solution
- Step 1: Write the proportion equation
120,313.32 : 180,495.08 = 36,070.08 : x - Step 2: Convert to fraction form
120,313.32/180,495.08 = 36,070.08/x - Step 3: Cross multiply
120,313.32x = 180,495.08 × 36,070.08 - Step 4: Simplify right side
120,313.32x = 6,510,471,975.21 - Step 5: Solve for x
x = 6,510,471,975.21/120,313.32 - Step 6: Final answer
x = 54,112.65
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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.