Finding the Fourth Proportional to 163,643.19, 225,826.08 and 92,023.70
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Solution
The fourth proportional to 163,643.19, 225,826.08 and 92,023.70 is: 126,991.84
Step by Step Solution
- Step 1: Write the proportion equation
163,643.19 : 225,826.08 = 92,023.70 : x - Step 2: Convert to fraction form
163,643.19/225,826.08 = 92,023.70/x - Step 3: Cross multiply
163,643.19x = 225,826.08 × 92,023.70 - Step 4: Simplify right side
163,643.19x = 20,781,349,963.88 - Step 5: Solve for x
x = 20,781,349,963.88/163,643.19 - Step 6: Final answer
x = 126,991.84
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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.