Finding the Fourth Proportional to 157,774.08, 217,729.44 and 86,152.80
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Solution
The fourth proportional to 157,774.08, 217,729.44 and 86,152.80 is: 118,891.52
Step by Step Solution
- Step 1: Write the proportion equation
157,774.08 : 217,729.44 = 86,152.80 : x - Step 2: Convert to fraction form
157,774.08/217,729.44 = 86,152.80/x - Step 3: Cross multiply
157,774.08x = 217,729.44 × 86,152.80 - Step 4: Simplify right side
157,774.08x = 18,758,000,898.43 - Step 5: Solve for x
x = 18,758,000,898.43/157,774.08 - Step 6: Final answer
x = 118,891.52
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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.