Finding the Fourth Proportional to 117,309.76, 175,937.68 and 69,938.26
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Solution
The fourth proportional to 117,309.76, 175,937.68 and 69,938.26 is: 104,891.32
Step by Step Solution
- Step 1: Write the proportion equation
117,309.76 : 175,937.68 = 69,938.26 : x - Step 2: Convert to fraction form
117,309.76/175,937.68 = 69,938.26/x - Step 3: Cross multiply
117,309.76x = 175,937.68 × 69,938.26 - Step 4: Simplify right side
117,309.76x = 12,304,775,207.64 - Step 5: Solve for x
x = 12,304,775,207.64/117,309.76 - Step 6: Final answer
x = 104,891.32
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1.5x scale
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.