Finding the Fourth Proportional to 139,627.44, 192,684.99 and 75,965.52
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Solution
The fourth proportional to 139,627.44, 192,684.99 and 75,965.52 is: 104,831.94
Step by Step Solution
- Step 1: Write the proportion equation
139,627.44 : 192,684.99 = 75,965.52 : x - Step 2: Convert to fraction form
139,627.44/192,684.99 = 75,965.52/x - Step 3: Cross multiply
139,627.44x = 192,684.99 × 75,965.52 - Step 4: Simplify right side
139,627.44x = 14,637,415,461.54 - Step 5: Solve for x
x = 14,637,415,461.54/139,627.44 - Step 6: Final answer
x = 104,831.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.