Finding the Fourth Proportional to 153,542.91, 211,934.84 and 96,991.95
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Solution
The fourth proportional to 153,542.91, 211,934.84 and 96,991.95 is: 133,877.71
Step by Step Solution
- Step 1: Write the proportion equation
153,542.91 : 211,934.84 = 96,991.95 : x - Step 2: Convert to fraction form
153,542.91/211,934.84 = 96,991.95/x - Step 3: Cross multiply
153,542.91x = 211,934.84 × 96,991.95 - Step 4: Simplify right side
153,542.91x = 20,555,972,919.58 - Step 5: Solve for x
x = 20,555,972,919.58/153,542.91 - Step 6: Final answer
x = 133,877.71
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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.