Finding the Fourth Proportional to 109,621.68, 164,432.52 and 26,515.68
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Solution
The fourth proportional to 109,621.68, 164,432.52 and 26,515.68 is: 39,773.52
Step by Step Solution
- Step 1: Write the proportion equation
109,621.68 : 164,432.52 = 26,515.68 : x - Step 2: Convert to fraction form
109,621.68/164,432.52 = 26,515.68/x - Step 3: Cross multiply
109,621.68x = 164,432.52 × 26,515.68 - Step 4: Simplify right side
109,621.68x = 4,360,040,081.91 - Step 5: Solve for x
x = 4,360,040,081.91/109,621.68 - Step 6: Final answer
x = 39,773.52
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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.