Finding the Fourth Proportional to 153,062.19, 211,267.49 and 99,344.07
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Solution
The fourth proportional to 153,062.19, 211,267.49 and 99,344.07 is: 137,121.86
Step by Step Solution
- Step 1: Write the proportion equation
153,062.19 : 211,267.49 = 99,344.07 : x - Step 2: Convert to fraction form
153,062.19/211,267.49 = 99,344.07/x - Step 3: Cross multiply
153,062.19x = 211,267.49 × 99,344.07 - Step 4: Simplify right side
153,062.19x = 20,988,172,315.28 - Step 5: Solve for x
x = 20,988,172,315.28/153,062.19 - Step 6: Final answer
x = 137,121.86
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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.