Finding the Fourth Proportional to 159,031.26, 219,464.81 and 86,434.14
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Solution
The fourth proportional to 159,031.26, 219,464.81 and 86,434.14 is: 119,280.02
Step by Step Solution
- Step 1: Write the proportion equation
159,031.26 : 219,464.81 = 86,434.14 : x - Step 2: Convert to fraction form
159,031.26/219,464.81 = 86,434.14/x - Step 3: Cross multiply
159,031.26x = 219,464.81 × 86,434.14 - Step 4: Simplify right side
159,031.26x = 18,969,252,112.61 - Step 5: Solve for x
x = 18,969,252,112.61/159,031.26 - Step 6: Final answer
x = 119,280.02
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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.