Finding the Fourth Proportional to 117,133.40, 175,698.57 and 28,387.68
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Solution
The fourth proportional to 117,133.40, 175,698.57 and 28,387.68 is: 42,581.15
Step by Step Solution
- Step 1: Write the proportion equation
117,133.40 : 175,698.57 = 28,387.68 : x - Step 2: Convert to fraction form
117,133.40/175,698.57 = 28,387.68/x - Step 3: Cross multiply
117,133.40x = 175,698.57 × 28,387.68 - Step 4: Simplify right side
117,133.40x = 4,987,674,781.62 - Step 5: Solve for x
x = 4,987,674,781.62/117,133.40 - Step 6: Final answer
x = 42,581.15
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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.