Finding the Fourth Proportional to 141,970.36, 195,919.26 and 81,552.70
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Solution
The fourth proportional to 141,970.36, 195,919.26 and 81,552.70 is: 112,542.82
Step by Step Solution
- Step 1: Write the proportion equation
141,970.36 : 195,919.26 = 81,552.70 : x - Step 2: Convert to fraction form
141,970.36/195,919.26 = 81,552.70/x - Step 3: Cross multiply
141,970.36x = 195,919.26 × 81,552.70 - Step 4: Simplify right side
141,970.36x = 15,977,744,227.24 - Step 5: Solve for x
x = 15,977,744,227.24/141,970.36 - Step 6: Final answer
x = 112,542.82
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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.