Finding the Fourth Proportional to 163,980.97, 246,102.65 and 85,117.75
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Solution
The fourth proportional to 163,980.97, 246,102.65 and 85,117.75 is: 127,744.72
Step by Step Solution
- Step 1: Write the proportion equation
163,980.97 : 246,102.65 = 85,117.75 : x - Step 2: Convert to fraction form
163,980.97/246,102.65 = 85,117.75/x - Step 3: Cross multiply
163,980.97x = 246,102.65 × 85,117.75 - Step 4: Simplify right side
163,980.97x = 20,947,703,434.58 - Step 5: Solve for x
x = 20,947,703,434.58/163,980.97 - Step 6: Final answer
x = 127,744.72
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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.