Finding the Fourth Proportional to 153,729.08, 212,146.22 and 83,073.08
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Solution
The fourth proportional to 153,729.08, 212,146.22 and 83,073.08 is: 114,640.90
Step by Step Solution
- Step 1: Write the proportion equation
153,729.08 : 212,146.22 = 83,073.08 : x - Step 2: Convert to fraction form
153,729.08/212,146.22 = 83,073.08/x - Step 3: Cross multiply
153,729.08x = 212,146.22 × 83,073.08 - Step 4: Simplify right side
153,729.08x = 17,623,639,905.76 - Step 5: Solve for x
x = 17,623,639,905.76/153,729.08 - Step 6: Final answer
x = 114,640.90
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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.