Finding the Fourth Proportional to 128,122.04, 192,188.12 and 48,151.95
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Solution
The fourth proportional to 128,122.04, 192,188.12 and 48,151.95 is: 72,229.83
Step by Step Solution
- Step 1: Write the proportion equation
128,122.04 : 192,188.12 = 48,151.95 : x - Step 2: Convert to fraction form
128,122.04/192,188.12 = 48,151.95/x - Step 3: Cross multiply
128,122.04x = 192,188.12 × 48,151.95 - Step 4: Simplify right side
128,122.04x = 9,254,232,504.07 - Step 5: Solve for x
x = 9,254,232,504.07/128,122.04 - Step 6: Final answer
x = 72,229.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.