Finding the Fourth Proportional to 163,749.34, 225,972.49 and 91,151.08
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Solution
The fourth proportional to 163,749.34, 225,972.49 and 91,151.08 is: 125,787.59
Step by Step Solution
- Step 1: Write the proportion equation
163,749.34 : 225,972.49 = 91,151.08 : x - Step 2: Convert to fraction form
163,749.34/225,972.49 = 91,151.08/x - Step 3: Cross multiply
163,749.34x = 225,972.49 × 91,151.08 - Step 4: Simplify right side
163,749.34x = 20,597,634,928.17 - Step 5: Solve for x
x = 20,597,634,928.17/163,749.34 - Step 6: Final answer
x = 125,787.59
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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.