Finding the Fourth Proportional to 133,247.08, 183,873.12 and 72,805.68
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Solution
The fourth proportional to 133,247.08, 183,873.12 and 72,805.68 is: 100,467.55
Step by Step Solution
- Step 1: Write the proportion equation
133,247.08 : 183,873.12 = 72,805.68 : x - Step 2: Convert to fraction form
133,247.08/183,873.12 = 72,805.68/x - Step 3: Cross multiply
133,247.08x = 183,873.12 × 72,805.68 - Step 4: Simplify right side
133,247.08x = 13,387,007,535.32 - Step 5: Solve for x
x = 13,387,007,535.32/133,247.08 - Step 6: Final answer
x = 100,467.55
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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.