Finding the Fourth Proportional to 101,690.98, 140,250.36 and 71,575.99
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Solution
The fourth proportional to 101,690.98, 140,250.36 and 71,575.99 is: 98,716.31
Step by Step Solution
- Step 1: Write the proportion equation
101,690.98 : 140,250.36 = 71,575.99 : x - Step 2: Convert to fraction form
101,690.98/140,250.36 = 71,575.99/x - Step 3: Cross multiply
101,690.98x = 140,250.36 × 71,575.99 - Step 4: Simplify right side
101,690.98x = 10,038,558,364.86 - Step 5: Solve for x
x = 10,038,558,364.86/101,690.98 - Step 6: Final answer
x = 98,716.31
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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.