Finding the Fourth Proportional to 103,857.12, 143,326.98 and 58,536.99
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Solution
The fourth proportional to 103,857.12, 143,326.98 and 58,536.99 is: 80,783.39
Step by Step Solution
- Step 1: Write the proportion equation
103,857.12 : 143,326.98 = 58,536.99 : x - Step 2: Convert to fraction form
103,857.12/143,326.98 = 58,536.99/x - Step 3: Cross multiply
103,857.12x = 143,326.98 × 58,536.99 - Step 4: Simplify right side
103,857.12x = 8,389,929,994.99 - Step 5: Solve for x
x = 8,389,929,994.99/103,857.12 - Step 6: Final answer
x = 80,783.39
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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.