Finding the Fourth Proportional to 134,536.62, 185,660.56 and 77,980.80
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Solution
The fourth proportional to 134,536.62, 185,660.56 and 77,980.80 is: 107,613.52
Step by Step Solution
- Step 1: Write the proportion equation
134,536.62 : 185,660.56 = 77,980.80 : x - Step 2: Convert to fraction form
134,536.62/185,660.56 = 77,980.80/x - Step 3: Cross multiply
134,536.62x = 185,660.56 × 77,980.80 - Step 4: Simplify right side
134,536.62x = 14,477,958,997.25 - Step 5: Solve for x
x = 14,477,958,997.25/134,536.62 - Step 6: Final answer
x = 107,613.52
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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.