Finding the Fourth Proportional to 129,874.64, 194,655.20 and 63,214.88
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Solution
The fourth proportional to 129,874.64, 194,655.20 and 63,214.88 is: 94,746.02
Step by Step Solution
- Step 1: Write the proportion equation
129,874.64 : 194,655.20 = 63,214.88 : x - Step 2: Convert to fraction form
129,874.64/194,655.20 = 63,214.88/x - Step 3: Cross multiply
129,874.64x = 194,655.20 × 63,214.88 - Step 4: Simplify right side
129,874.64x = 12,305,105,109.38 - Step 5: Solve for x
x = 12,305,105,109.38/129,874.64 - Step 6: Final answer
x = 94,746.02
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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.