Finding the Fourth Proportional to 138,121.11, 190,444.10 and 94,534.68
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Solution
The fourth proportional to 138,121.11, 190,444.10 and 94,534.68 is: 130,346.28
Step by Step Solution
- Step 1: Write the proportion equation
138,121.11 : 190,444.10 = 94,534.68 : x - Step 2: Convert to fraction form
138,121.11/190,444.10 = 94,534.68/x - Step 3: Cross multiply
138,121.11x = 190,444.10 × 94,534.68 - Step 4: Simplify right side
138,121.11x = 18,003,572,292.88 - Step 5: Solve for x
x = 18,003,572,292.88/138,121.11 - Step 6: Final answer
x = 130,346.28
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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.