Finding the Fourth Proportional to 163,402.76, 225,512.34 and 99,777.80
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Solution
The fourth proportional to 163,402.76, 225,512.34 and 99,777.80 is: 137,703.46
Step by Step Solution
- Step 1: Write the proportion equation
163,402.76 : 225,512.34 = 99,777.80 : x - Step 2: Convert to fraction form
163,402.76/225,512.34 = 99,777.80/x - Step 3: Cross multiply
163,402.76x = 225,512.34 × 99,777.80 - Step 4: Simplify right side
163,402.76x = 22,501,125,158.05 - Step 5: Solve for x
x = 22,501,125,158.05/163,402.76 - Step 6: Final answer
x = 137,703.46
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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.