Finding the Fourth Proportional to 112,536.05, 155,293.49 and 61,538.63
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Solution
The fourth proportional to 112,536.05, 155,293.49 and 61,538.63 is: 84,919.88
Step by Step Solution
- Step 1: Write the proportion equation
112,536.05 : 155,293.49 = 61,538.63 : x - Step 2: Convert to fraction form
112,536.05/155,293.49 = 61,538.63/x - Step 3: Cross multiply
112,536.05x = 155,293.49 × 61,538.63 - Step 4: Simplify right side
112,536.05x = 9,556,548,314.83 - Step 5: Solve for x
x = 9,556,548,314.83/112,536.05 - Step 6: Final answer
x = 84,919.88
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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.