Finding the Fourth Proportional to 157,554.28, 217,412.58 and 85,930.12
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Solution
The fourth proportional to 157,554.28, 217,412.58 and 85,930.12 is: 118,576.84
Step by Step Solution
- Step 1: Write the proportion equation
157,554.28 : 217,412.58 = 85,930.12 : x - Step 2: Convert to fraction form
157,554.28/217,412.58 = 85,930.12/x - Step 3: Cross multiply
157,554.28x = 217,412.58 × 85,930.12 - Step 4: Simplify right side
157,554.28x = 18,682,289,088.91 - Step 5: Solve for x
x = 18,682,289,088.91/157,554.28 - Step 6: Final answer
x = 118,576.84
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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.