Finding the Fourth Proportional to 192,858.81, 266,157.41 and 107,980.53
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Solution
The fourth proportional to 192,858.81, 266,157.41 and 107,980.53 is: 149,019.99
Step by Step Solution
- Step 1: Write the proportion equation
192,858.81 : 266,157.41 = 107,980.53 : x - Step 2: Convert to fraction form
192,858.81/266,157.41 = 107,980.53/x - Step 3: Cross multiply
192,858.81x = 266,157.41 × 107,980.53 - Step 4: Simplify right side
192,858.81x = 28,739,817,655.32 - Step 5: Solve for x
x = 28,739,817,655.32/192,858.81 - Step 6: Final answer
x = 149,019.99
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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.