Finding the Fourth Proportional to 139,195.30, 192,090.02 and 75,533.09
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Solution
The fourth proportional to 139,195.30, 192,090.02 and 75,533.09 is: 104,235.94
Step by Step Solution
- Step 1: Write the proportion equation
139,195.30 : 192,090.02 = 75,533.09 : x - Step 2: Convert to fraction form
139,195.30/192,090.02 = 75,533.09/x - Step 3: Cross multiply
139,195.30x = 192,090.02 × 75,533.09 - Step 4: Simplify right side
139,195.30x = 14,509,152,768.76 - Step 5: Solve for x
x = 14,509,152,768.76/139,195.30 - Step 6: Final answer
x = 104,235.94
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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.