Finding the Fourth Proportional to 163,108.36, 225,077.96 and 90,515.14
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Solution
The fourth proportional to 163,108.36, 225,077.96 and 90,515.14 is: 124,904.47
Step by Step Solution
- Step 1: Write the proportion equation
163,108.36 : 225,077.96 = 90,515.14 : x - Step 2: Convert to fraction form
163,108.36/225,077.96 = 90,515.14/x - Step 3: Cross multiply
163,108.36x = 225,077.96 × 90,515.14 - Step 4: Simplify right side
163,108.36x = 20,372,963,060.31 - Step 5: Solve for x
x = 20,372,963,060.31/163,108.36 - Step 6: Final answer
x = 124,904.47
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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.