Finding the Fourth Proportional to 142,239.26, 213,358.89 and 97,731.08
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Solution
The fourth proportional to 142,239.26, 213,358.89 and 97,731.08 is: 146,596.62
Step by Step Solution
- Step 1: Write the proportion equation
142,239.26 : 213,358.89 = 97,731.08 : x - Step 2: Convert to fraction form
142,239.26/213,358.89 = 97,731.08/x - Step 3: Cross multiply
142,239.26x = 213,358.89 × 97,731.08 - Step 4: Simplify right side
142,239.26x = 20,851,794,747.30 - Step 5: Solve for x
x = 20,851,794,747.30/142,239.26 - Step 6: Final answer
x = 146,596.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.