Finding the Fourth Proportional to 101,619.25, 140,232.75 and 56,297.09
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Solution
The fourth proportional to 101,619.25, 140,232.75 and 56,297.09 is: 77,688.98
Step by Step Solution
- Step 1: Write the proportion equation
101,619.25 : 140,232.75 = 56,297.09 : x - Step 2: Convert to fraction form
101,619.25/140,232.75 = 56,297.09/x - Step 3: Cross multiply
101,619.25x = 140,232.75 × 56,297.09 - Step 4: Simplify right side
101,619.25x = 7,894,695,747.70 - Step 5: Solve for x
x = 7,894,695,747.70/101,619.25 - Step 6: Final answer
x = 77,688.98
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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.