Finding the Fourth Proportional to 99,266.22, 136,987.20 and 56,245.62
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Solution
The fourth proportional to 99,266.22, 136,987.20 and 56,245.62 is: 77,618.85
Step by Step Solution
- Step 1: Write the proportion equation
99,266.22 : 136,987.20 = 56,245.62 : x - Step 2: Convert to fraction form
99,266.22/136,987.20 = 56,245.62/x - Step 3: Cross multiply
99,266.22x = 136,987.20 × 56,245.62 - Step 4: Simplify right side
99,266.22x = 7,704,929,996.06 - Step 5: Solve for x
x = 7,704,929,996.06/99,266.22 - Step 6: Final answer
x = 77,618.85
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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.