Finding the Fourth Proportional to 128,032.20, 192,048.30 and 101,305.80
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Solution
The fourth proportional to 128,032.20, 192,048.30 and 101,305.80 is: 151,958.70
Step by Step Solution
- Step 1: Write the proportion equation
128,032.20 : 192,048.30 = 101,305.80 : x - Step 2: Convert to fraction form
128,032.20/192,048.30 = 101,305.80/x - Step 3: Cross multiply
128,032.20x = 192,048.30 × 101,305.80 - Step 4: Simplify right side
128,032.20x = 19,455,606,670.14 - Step 5: Solve for x
x = 19,455,606,670.14/128,032.20 - Step 6: Final answer
x = 151,958.70
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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.