Finding the Fourth Proportional to 146,291.42, 201,880.36 and 81,761.70
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Solution
The fourth proportional to 146,291.42, 201,880.36 and 81,761.70 is: 112,830.14
Step by Step Solution
- Step 1: Write the proportion equation
146,291.42 : 201,880.36 = 81,761.70 : x - Step 2: Convert to fraction form
146,291.42/201,880.36 = 81,761.70/x - Step 3: Cross multiply
146,291.42x = 201,880.36 × 81,761.70 - Step 4: Simplify right side
146,291.42x = 16,506,081,430.21 - Step 5: Solve for x
x = 16,506,081,430.21/146,291.42 - Step 6: Final answer
x = 112,830.14
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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.