Finding the Fourth Proportional to 153,805.28, 212,259.12 and 116,013.92
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Solution
The fourth proportional to 153,805.28, 212,259.12 and 116,013.92 is: 160,105.12
Step by Step Solution
- Step 1: Write the proportion equation
153,805.28 : 212,259.12 = 116,013.92 : x - Step 2: Convert to fraction form
153,805.28/212,259.12 = 116,013.92/x - Step 3: Cross multiply
153,805.28x = 212,259.12 × 116,013.92 - Step 4: Simplify right side
153,805.28x = 24,625,012,566.95 - Step 5: Solve for x
x = 24,625,012,566.95/153,805.28 - Step 6: Final answer
x = 160,105.12
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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.