Finding the Fourth Proportional to 132,479.85, 182,820.85 and 72,050.99
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Solution
The fourth proportional to 132,479.85, 182,820.85 and 72,050.99 is: 99,429.62
Step by Step Solution
- Step 1: Write the proportion equation
132,479.85 : 182,820.85 = 72,050.99 : x - Step 2: Convert to fraction form
132,479.85/182,820.85 = 72,050.99/x - Step 3: Cross multiply
132,479.85x = 182,820.85 × 72,050.99 - Step 4: Simplify right side
132,479.85x = 13,172,422,140.91 - Step 5: Solve for x
x = 13,172,422,140.91/132,479.85 - Step 6: Final answer
x = 99,429.62
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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.