Finding the Fourth Proportional to 157,394.49, 217,204.44 and 85,774.53
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Solution
The fourth proportional to 157,394.49, 217,204.44 and 85,774.53 is: 118,368.88
Step by Step Solution
- Step 1: Write the proportion equation
157,394.49 : 217,204.44 = 85,774.53 : x - Step 2: Convert to fraction form
157,394.49/217,204.44 = 85,774.53/x - Step 3: Cross multiply
157,394.49x = 217,204.44 × 85,774.53 - Step 4: Simplify right side
157,394.49x = 18,630,608,754.91 - Step 5: Solve for x
x = 18,630,608,754.91/157,394.49 - Step 6: Final answer
x = 118,368.88
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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.