Finding the Fourth Proportional to 159,145.26, 219,615.36 and 87,525.06
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Solution
The fourth proportional to 159,145.26, 219,615.36 and 87,525.06 is: 120,781.78
Step by Step Solution
- Step 1: Write the proportion equation
159,145.26 : 219,615.36 = 87,525.06 : x - Step 2: Convert to fraction form
159,145.26/219,615.36 = 87,525.06/x - Step 3: Cross multiply
159,145.26x = 219,615.36 × 87,525.06 - Step 4: Simplify right side
159,145.26x = 19,221,847,560.92 - Step 5: Solve for x
x = 19,221,847,560.92/159,145.26 - Step 6: Final answer
x = 120,781.78
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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.