Finding the Fourth Proportional to 139,838.10, 193,048.11 and 94,754.34
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Solution
The fourth proportional to 139,838.10, 193,048.11 and 94,754.34 is: 130,809.46
Step by Step Solution
- Step 1: Write the proportion equation
139,838.10 : 193,048.11 = 94,754.34 : x - Step 2: Convert to fraction form
139,838.10/193,048.11 = 94,754.34/x - Step 3: Cross multiply
139,838.10x = 193,048.11 × 94,754.34 - Step 4: Simplify right side
139,838.10x = 18,292,146,251.30 - Step 5: Solve for x
x = 18,292,146,251.30/139,838.10 - Step 6: Final answer
x = 130,809.46
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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.