Finding the Fourth Proportional to 154,270.26, 212,890.14 and 87,202.26
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Solution
The fourth proportional to 154,270.26, 212,890.14 and 87,202.26 is: 120,337.53
Step by Step Solution
- Step 1: Write the proportion equation
154,270.26 : 212,890.14 = 87,202.26 : x - Step 2: Convert to fraction form
154,270.26/212,890.14 = 87,202.26/x - Step 3: Cross multiply
154,270.26x = 212,890.14 × 87,202.26 - Step 4: Simplify right side
154,270.26x = 18,564,501,339.72 - Step 5: Solve for x
x = 18,564,501,339.72/154,270.26 - Step 6: Final answer
x = 120,337.53
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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.