Finding the Fourth Proportional to 150,539.76, 207,721.26 and 86,865.48
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Solution
The fourth proportional to 150,539.76, 207,721.26 and 86,865.48 is: 119,860.74
Step by Step Solution
- Step 1: Write the proportion equation
150,539.76 : 207,721.26 = 86,865.48 : x - Step 2: Convert to fraction form
150,539.76/207,721.26 = 86,865.48/x - Step 3: Cross multiply
150,539.76x = 207,721.26 × 86,865.48 - Step 4: Simplify right side
150,539.76x = 18,043,806,956.10 - Step 5: Solve for x
x = 18,043,806,956.10/150,539.76 - Step 6: Final answer
x = 119,860.74
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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.