Finding the Fourth Proportional to 162,297.95, 223,972.29 and 90,680.99
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Solution
The fourth proportional to 162,297.95, 223,972.29 and 90,680.99 is: 125,140.39
Step by Step Solution
- Step 1: Write the proportion equation
162,297.95 : 223,972.29 = 90,680.99 : x - Step 2: Convert to fraction form
162,297.95/223,972.29 = 90,680.99/x - Step 3: Cross multiply
162,297.95x = 223,972.29 × 90,680.99 - Step 4: Simplify right side
162,297.95x = 20,310,027,869.91 - Step 5: Solve for x
x = 20,310,027,869.91/162,297.95 - Step 6: Final answer
x = 125,140.39
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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.