Finding the Fourth Proportional to 139,582.01, 192,621.74 and 75,919.79
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Solution
The fourth proportional to 139,582.01, 192,621.74 and 75,919.79 is: 104,768.53
Step by Step Solution
- Step 1: Write the proportion equation
139,582.01 : 192,621.74 = 75,919.79 : x - Step 2: Convert to fraction form
139,582.01/192,621.74 = 75,919.79/x - Step 3: Cross multiply
139,582.01x = 192,621.74 × 75,919.79 - Step 4: Simplify right side
139,582.01x = 14,623,802,152.19 - Step 5: Solve for x
x = 14,623,802,152.19/139,582.01 - Step 6: Final answer
x = 104,768.53
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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.