Finding the Fourth Proportional to 139,289.00, 192,216.93 and 78,858.08
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Solution
The fourth proportional to 139,289.00, 192,216.93 and 78,858.08 is: 108,823.08
Step by Step Solution
- Step 1: Write the proportion equation
139,289.00 : 192,216.93 = 78,858.08 : x - Step 2: Convert to fraction form
139,289.00/192,216.93 = 78,858.08/x - Step 3: Cross multiply
139,289.00x = 192,216.93 × 78,858.08 - Step 4: Simplify right side
139,289.00x = 15,157,857,082.21 - Step 5: Solve for x
x = 15,157,857,082.21/139,289.00 - Step 6: Final answer
x = 108,823.08
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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.