Finding the Fourth Proportional to 165,781.80, 248,672.70 and 113,293.80
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Solution
The fourth proportional to 165,781.80, 248,672.70 and 113,293.80 is: 169,940.70
Step by Step Solution
- Step 1: Write the proportion equation
165,781.80 : 248,672.70 = 113,293.80 : x - Step 2: Convert to fraction form
165,781.80/248,672.70 = 113,293.80/x - Step 3: Cross multiply
165,781.80x = 248,672.70 × 113,293.80 - Step 4: Simplify right side
165,781.80x = 28,173,075,139.26 - Step 5: Solve for x
x = 28,173,075,139.26/165,781.80 - Step 6: Final answer
x = 169,940.70
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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.