Finding the Fourth Proportional to 128,197.03, 192,313.76 and 39,457.93
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Solution
The fourth proportional to 128,197.03, 192,313.76 and 39,457.93 is: 59,192.50
Step by Step Solution
- Step 1: Write the proportion equation
128,197.03 : 192,313.76 = 39,457.93 : x - Step 2: Convert to fraction form
128,197.03/192,313.76 = 39,457.93/x - Step 3: Cross multiply
128,197.03x = 192,313.76 × 39,457.93 - Step 4: Simplify right side
128,197.03x = 7,588,302,497.98 - Step 5: Solve for x
x = 7,588,302,497.98/128,197.03 - Step 6: Final answer
x = 59,192.50
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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.