Finding the Fourth Proportional to 139,496.99, 192,490.02 and 79,054.68
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Solution
The fourth proportional to 139,496.99, 192,490.02 and 79,054.68 is: 109,086.50
Step by Step Solution
- Step 1: Write the proportion equation
139,496.99 : 192,490.02 = 79,054.68 : x - Step 2: Convert to fraction form
139,496.99/192,490.02 = 79,054.68/x - Step 3: Cross multiply
139,496.99x = 192,490.02 × 79,054.68 - Step 4: Simplify right side
139,496.99x = 15,217,237,656.13 - Step 5: Solve for x
x = 15,217,237,656.13/139,496.99 - Step 6: Final answer
x = 109,086.50
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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.