Finding the Fourth Proportional to 129,784.28, 194,682.80 and 63,281.26
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Solution
The fourth proportional to 129,784.28, 194,682.80 and 63,281.26 is: 94,924.99
Step by Step Solution
- Step 1: Write the proportion equation
129,784.28 : 194,682.80 = 63,281.26 : x - Step 2: Convert to fraction form
129,784.28/194,682.80 = 63,281.26/x - Step 3: Cross multiply
129,784.28x = 194,682.80 × 63,281.26 - Step 4: Simplify right side
129,784.28x = 12,319,771,910.91 - Step 5: Solve for x
x = 12,319,771,910.91/129,784.28 - Step 6: Final answer
x = 94,924.99
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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.