Finding the Fourth Proportional to 153,135.36, 211,378.41 and 104,766.21
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Solution
The fourth proportional to 153,135.36, 211,378.41 and 104,766.21 is: 144,612.68
Step by Step Solution
- Step 1: Write the proportion equation
153,135.36 : 211,378.41 = 104,766.21 : x - Step 2: Convert to fraction form
153,135.36/211,378.41 = 104,766.21/x - Step 3: Cross multiply
153,135.36x = 211,378.41 × 104,766.21 - Step 4: Simplify right side
153,135.36x = 22,145,314,891.53 - Step 5: Solve for x
x = 22,145,314,891.53/153,135.36 - Step 6: Final answer
x = 144,612.68
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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.