Finding the Fourth Proportional to 110,958.16, 153,202.44 and 68,574.80
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Solution
The fourth proportional to 110,958.16, 153,202.44 and 68,574.80 is: 94,682.78
Step by Step Solution
- Step 1: Write the proportion equation
110,958.16 : 153,202.44 = 68,574.80 : x - Step 2: Convert to fraction form
110,958.16/153,202.44 = 68,574.80/x - Step 3: Cross multiply
110,958.16x = 153,202.44 × 68,574.80 - Step 4: Simplify right side
110,958.16x = 10,505,826,682.51 - Step 5: Solve for x
x = 10,505,826,682.51/110,958.16 - Step 6: Final answer
x = 94,682.78
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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.