Finding the Fourth Proportional to 149,430.36, 206,213.98 and 84,899.72
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Solution
The fourth proportional to 149,430.36, 206,213.98 and 84,899.72 is: 117,161.66
Step by Step Solution
- Step 1: Write the proportion equation
149,430.36 : 206,213.98 = 84,899.72 : x - Step 2: Convert to fraction form
149,430.36/206,213.98 = 84,899.72/x - Step 3: Cross multiply
149,430.36x = 206,213.98 × 84,899.72 - Step 4: Simplify right side
149,430.36x = 17,507,509,162.09 - Step 5: Solve for x
x = 17,507,509,162.09/149,430.36 - Step 6: Final answer
x = 117,161.66
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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.