Finding the Fourth Proportional to 103,967.63, 143,475.32 and 56,220.98
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Solution
The fourth proportional to 103,967.63, 143,475.32 and 56,220.98 is: 77,584.94
Step by Step Solution
- Step 1: Write the proportion equation
103,967.63 : 143,475.32 = 56,220.98 : x - Step 2: Convert to fraction form
103,967.63/143,475.32 = 56,220.98/x - Step 3: Cross multiply
103,967.63x = 143,475.32 × 56,220.98 - Step 4: Simplify right side
103,967.63x = 8,066,322,097.73 - Step 5: Solve for x
x = 8,066,322,097.73/103,967.63 - Step 6: Final answer
x = 77,584.94
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1.5x scale
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.