Finding the Fourth Proportional to 158,126.78, 237,186.23 and 73,981.09
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Solution
The fourth proportional to 158,126.78, 237,186.23 and 73,981.09 is: 110,969.79
Step by Step Solution
- Step 1: Write the proportion equation
158,126.78 : 237,186.23 = 73,981.09 : x - Step 2: Convert to fraction form
158,126.78/237,186.23 = 73,981.09/x - Step 3: Cross multiply
158,126.78x = 237,186.23 × 73,981.09 - Step 4: Simplify right side
158,126.78x = 17,547,295,458.49 - Step 5: Solve for x
x = 17,547,295,458.49/158,126.78 - Step 6: Final answer
x = 110,969.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.