Finding the Fourth Proportional to 112,714.09, 155,507.68 and 64,966.41
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Solution
The fourth proportional to 112,714.09, 155,507.68 and 64,966.41 is: 89,631.88
Step by Step Solution
- Step 1: Write the proportion equation
112,714.09 : 155,507.68 = 64,966.41 : x - Step 2: Convert to fraction form
112,714.09/155,507.68 = 64,966.41/x - Step 3: Cross multiply
112,714.09x = 155,507.68 × 64,966.41 - Step 4: Simplify right side
112,714.09x = 10,102,775,778.24 - Step 5: Solve for x
x = 10,102,775,778.24/112,714.09 - Step 6: Final answer
x = 89,631.88
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1.5x scale
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.