Finding the Fourth Proportional to 157,072.97, 216,663.50 and 136,978.09
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Solution
The fourth proportional to 157,072.97, 216,663.50 and 136,978.09 is: 188,945.00
Step by Step Solution
- Step 1: Write the proportion equation
157,072.97 : 216,663.50 = 136,978.09 : x - Step 2: Convert to fraction form
157,072.97/216,663.50 = 136,978.09/x - Step 3: Cross multiply
157,072.97x = 216,663.50 × 136,978.09 - Step 4: Simplify right side
157,072.97x = 29,678,152,203.50 - Step 5: Solve for x
x = 29,678,152,203.50/157,072.97 - Step 6: Final answer
x = 188,945.00
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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.