Finding the Fourth Proportional to 153,310.53, 211,448.46 and 99,612.99
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Solution
The fourth proportional to 153,310.53, 211,448.46 and 99,612.99 is: 137,387.91
Step by Step Solution
- Step 1: Write the proportion equation
153,310.53 : 211,448.46 = 99,612.99 : x - Step 2: Convert to fraction form
153,310.53/211,448.46 = 99,612.99/x - Step 3: Cross multiply
153,310.53x = 211,448.46 × 99,612.99 - Step 4: Simplify right side
153,310.53x = 21,063,013,331.50 - Step 5: Solve for x
x = 21,063,013,331.50/153,310.53 - Step 6: Final answer
x = 137,387.91
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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.