Finding the Fourth Proportional to 146,006.63, 201,489.20 and 78,938.63
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Solution
The fourth proportional to 146,006.63, 201,489.20 and 78,938.63 is: 108,935.33
Step by Step Solution
- Step 1: Write the proportion equation
146,006.63 : 201,489.20 = 78,938.63 : x - Step 2: Convert to fraction form
146,006.63/201,489.20 = 78,938.63/x - Step 3: Cross multiply
146,006.63x = 201,489.20 × 78,938.63 - Step 4: Simplify right side
146,006.63x = 15,905,280,005.66 - Step 5: Solve for x
x = 15,905,280,005.66/146,006.63 - Step 6: Final answer
x = 108,935.33
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1.5x scale
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.