Finding the Fourth Proportional to 153,570.36, 211,898.97 and 85,585.62
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Solution
The fourth proportional to 153,570.36, 211,898.97 and 85,585.62 is: 118,092.48
Step by Step Solution
- Step 1: Write the proportion equation
153,570.36 : 211,898.97 = 85,585.62 : x - Step 2: Convert to fraction form
153,570.36/211,898.97 = 85,585.62/x - Step 3: Cross multiply
153,570.36x = 211,898.97 × 85,585.62 - Step 4: Simplify right side
153,570.36x = 18,135,504,724.81 - Step 5: Solve for x
x = 18,135,504,724.81/153,570.36 - Step 6: Final answer
x = 118,092.48
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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.