Finding the Fourth Proportional to 128,423.07, 192,373.49 and 104,814.75
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Solution
The fourth proportional to 128,423.07, 192,373.49 and 104,814.75 is: 157,009.01
Step by Step Solution
- Step 1: Write the proportion equation
128,423.07 : 192,373.49 = 104,814.75 : x - Step 2: Convert to fraction form
128,423.07/192,373.49 = 104,814.75/x - Step 3: Cross multiply
128,423.07x = 192,373.49 × 104,814.75 - Step 4: Simplify right side
128,423.07x = 20,163,578,736.90 - Step 5: Solve for x
x = 20,163,578,736.90/128,423.07 - Step 6: Final answer
x = 157,009.01
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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.