Finding the Fourth Proportional to 163,537.90, 245,416.20 and 74,745.70
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Solution
The fourth proportional to 163,537.90, 245,416.20 and 74,745.70 is: 112,168.53
Step by Step Solution
- Step 1: Write the proportion equation
163,537.90 : 245,416.20 = 74,745.70 : x - Step 2: Convert to fraction form
163,537.90/245,416.20 = 74,745.70/x - Step 3: Cross multiply
163,537.90x = 245,416.20 × 74,745.70 - Step 4: Simplify right side
163,537.90x = 18,343,805,660.34 - Step 5: Solve for x
x = 18,343,805,660.34/163,537.90 - Step 6: Final answer
x = 112,168.53
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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.