Finding the Fourth Proportional to 163,489.86, 245,248.97 and 45,161.28
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Solution
The fourth proportional to 163,489.86, 245,248.97 and 45,161.28 is: 67,745.84
Step by Step Solution
- Step 1: Write the proportion equation
163,489.86 : 245,248.97 = 45,161.28 : x - Step 2: Convert to fraction form
163,489.86/245,248.97 = 45,161.28/x - Step 3: Cross multiply
163,489.86x = 245,248.97 × 45,161.28 - Step 4: Simplify right side
163,489.86x = 11,075,757,178.08 - Step 5: Solve for x
x = 11,075,757,178.08/163,489.86 - Step 6: Final answer
x = 67,745.84
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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.