Finding the Fourth Proportional to 102,031.20, 153,046.80 and 73,891.80
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Solution
The fourth proportional to 102,031.20, 153,046.80 and 73,891.80 is: 110,837.70
Step by Step Solution
- Step 1: Write the proportion equation
102,031.20 : 153,046.80 = 73,891.80 : x - Step 2: Convert to fraction form
102,031.20/153,046.80 = 73,891.80/x - Step 3: Cross multiply
102,031.20x = 153,046.80 × 73,891.80 - Step 4: Simplify right side
102,031.20x = 11,308,903,536.24 - Step 5: Solve for x
x = 11,308,903,536.24/102,031.20 - Step 6: Final answer
x = 110,837.70
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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.