Finding the Fourth Proportional to 168,142.80, 232,029.99 and 91,660.26
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Solution
The fourth proportional to 168,142.80, 232,029.99 and 91,660.26 is: 126,487.30
Step by Step Solution
- Step 1: Write the proportion equation
168,142.80 : 232,029.99 = 91,660.26 : x - Step 2: Convert to fraction form
168,142.80/232,029.99 = 91,660.26/x - Step 3: Cross multiply
168,142.80x = 232,029.99 × 91,660.26 - Step 4: Simplify right side
168,142.80x = 21,267,929,211.20 - Step 5: Solve for x
x = 21,267,929,211.20/168,142.80 - Step 6: Final answer
x = 126,487.30
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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.