Finding the Fourth Proportional to 131,622.54, 181,638.90 and 71,192.99
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Solution
The fourth proportional to 131,622.54, 181,638.90 and 71,192.99 is: 98,246.21
Step by Step Solution
- Step 1: Write the proportion equation
131,622.54 : 181,638.90 = 71,192.99 : x - Step 2: Convert to fraction form
131,622.54/181,638.90 = 71,192.99/x - Step 3: Cross multiply
131,622.54x = 181,638.90 × 71,192.99 - Step 4: Simplify right side
131,622.54x = 12,931,415,483.12 - Step 5: Solve for x
x = 12,931,415,483.12/131,622.54 - Step 6: Final answer
x = 98,246.21
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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.