Finding the Fourth Proportional to 110,128.64, 151,977.12 and 62,377.28
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Solution
The fourth proportional to 110,128.64, 151,977.12 and 62,377.28 is: 86,080.42
Step by Step Solution
- Step 1: Write the proportion equation
110,128.64 : 151,977.12 = 62,377.28 : x - Step 2: Convert to fraction form
110,128.64/151,977.12 = 62,377.28/x - Step 3: Cross multiply
110,128.64x = 151,977.12 × 62,377.28 - Step 4: Simplify right side
110,128.64x = 9,479,919,367.83 - Step 5: Solve for x
x = 9,479,919,367.83/110,128.64 - Step 6: Final answer
x = 86,080.42
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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.