Finding the Fourth Proportional to 105,268.21, 157,902.99 and 42,093.65
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Solution
The fourth proportional to 105,268.21, 157,902.99 and 42,093.65 is: 63,140.75
Step by Step Solution
- Step 1: Write the proportion equation
105,268.21 : 157,902.99 = 42,093.65 : x - Step 2: Convert to fraction form
105,268.21/157,902.99 = 42,093.65/x - Step 3: Cross multiply
105,268.21x = 157,902.99 × 42,093.65 - Step 4: Simplify right side
105,268.21x = 6,646,713,342.98 - Step 5: Solve for x
x = 6,646,713,342.98/105,268.21 - Step 6: Final answer
x = 63,140.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.