Finding the Fourth Proportional to 123,536.16, 170,477.28 and 69,814.08
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Solution
The fourth proportional to 123,536.16, 170,477.28 and 69,814.08 is: 96,341.95
Step by Step Solution
- Step 1: Write the proportion equation
123,536.16 : 170,477.28 = 69,814.08 : x - Step 2: Convert to fraction form
123,536.16/170,477.28 = 69,814.08/x - Step 3: Cross multiply
123,536.16x = 170,477.28 × 69,814.08 - Step 4: Simplify right side
123,536.16x = 11,901,714,464.10 - Step 5: Solve for x
x = 11,901,714,464.10/123,536.16 - Step 6: Final answer
x = 96,341.95
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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.