Finding the Fourth Proportional to 113,997.68, 157,313.58 and 63,696.68
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Solution
The fourth proportional to 113,997.68, 157,313.58 and 63,696.68 is: 87,899.62
Step by Step Solution
- Step 1: Write the proportion equation
113,997.68 : 157,313.58 = 63,696.68 : x - Step 2: Convert to fraction form
113,997.68/157,313.58 = 63,696.68/x - Step 3: Cross multiply
113,997.68x = 157,313.58 × 63,696.68 - Step 4: Simplify right side
113,997.68x = 10,020,352,764.91 - Step 5: Solve for x
x = 10,020,352,764.91/113,997.68 - Step 6: Final answer
x = 87,899.62
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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.