Finding the Fourth Proportional to 153,072.07, 211,342.55 and 136,889.19
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Solution
The fourth proportional to 153,072.07, 211,342.55 and 136,889.19 is: 188,999.28
Step by Step Solution
- Step 1: Write the proportion equation
153,072.07 : 211,342.55 = 136,889.19 : x - Step 2: Convert to fraction form
153,072.07/211,342.55 = 136,889.19/x - Step 3: Cross multiply
153,072.07x = 211,342.55 × 136,889.19 - Step 4: Simplify right side
153,072.07x = 28,930,509,797.59 - Step 5: Solve for x
x = 28,930,509,797.59/153,072.07 - Step 6: Final answer
x = 188,999.28
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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.