Finding the Fourth Proportional to 154,056.23, 212,576.45 and 86,064.74
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Solution
The fourth proportional to 154,056.23, 212,576.45 and 86,064.74 is: 118,757.53
Step by Step Solution
- Step 1: Write the proportion equation
154,056.23 : 212,576.45 = 86,064.74 : x - Step 2: Convert to fraction form
154,056.23/212,576.45 = 86,064.74/x - Step 3: Cross multiply
154,056.23x = 212,576.45 × 86,064.74 - Step 4: Simplify right side
154,056.23x = 18,295,337,883.19 - Step 5: Solve for x
x = 18,295,337,883.19/154,056.23 - Step 6: Final answer
x = 118,757.53
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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.