Finding the Fourth Proportional to 128,184.96, 192,125.16 and 53,289.12
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Solution
The fourth proportional to 128,184.96, 192,125.16 and 53,289.12 is: 79,870.37
Step by Step Solution
- Step 1: Write the proportion equation
128,184.96 : 192,125.16 = 53,289.12 : x - Step 2: Convert to fraction form
128,184.96/192,125.16 = 53,289.12/x - Step 3: Cross multiply
128,184.96x = 192,125.16 × 53,289.12 - Step 4: Simplify right side
128,184.96x = 10,238,180,706.26 - Step 5: Solve for x
x = 10,238,180,706.26/128,184.96 - Step 6: Final answer
x = 79,870.37
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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.