Finding the Fourth Proportional to 153,073.07, 211,343.93 and 136,890.19
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Solution
The fourth proportional to 153,073.07, 211,343.93 and 136,890.19 is: 189,000.66
Step by Step Solution
- Step 1: Write the proportion equation
153,073.07 : 211,343.93 = 136,890.19 : x - Step 2: Convert to fraction form
153,073.07/211,343.93 = 136,890.19/x - Step 3: Cross multiply
153,073.07x = 211,343.93 × 136,890.19 - Step 4: Simplify right side
153,073.07x = 28,930,910,733.05 - Step 5: Solve for x
x = 28,930,910,733.05/153,073.07 - Step 6: Final answer
x = 189,000.66
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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.