Finding the Fourth Proportional to 117,539.60, 175,920.60 and 103,542.80
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Solution
The fourth proportional to 117,539.60, 175,920.60 and 103,542.80 is: 154,971.70
Step by Step Solution
- Step 1: Write the proportion equation
117,539.60 : 175,920.60 = 103,542.80 : x - Step 2: Convert to fraction form
117,539.60/175,920.60 = 103,542.80/x - Step 3: Cross multiply
117,539.60x = 175,920.60 × 103,542.80 - Step 4: Simplify right side
117,539.60x = 18,215,311,501.68 - Step 5: Solve for x
x = 18,215,311,501.68/117,539.60 - Step 6: Final answer
x = 154,971.70
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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.