Finding the Fourth Proportional to 153,170.99, 211,344.71 and 89,496.47
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Solution
The fourth proportional to 153,170.99, 211,344.71 and 89,496.47 is: 123,486.86
Step by Step Solution
- Step 1: Write the proportion equation
153,170.99 : 211,344.71 = 89,496.47 : x - Step 2: Convert to fraction form
153,170.99/211,344.71 = 89,496.47/x - Step 3: Cross multiply
153,170.99x = 211,344.71 × 89,496.47 - Step 4: Simplify right side
153,170.99x = 18,914,604,665.19 - Step 5: Solve for x
x = 18,914,604,665.19/153,170.99 - Step 6: Final answer
x = 123,486.86
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1.5x scale
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.