Finding the Fourth Proportional to 108,538.57, 149,783.67 and 63,247.63
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Solution
The fourth proportional to 108,538.57, 149,783.67 and 63,247.63 is: 87,281.99
Step by Step Solution
- Step 1: Write the proportion equation
108,538.57 : 149,783.67 = 63,247.63 : x - Step 2: Convert to fraction form
108,538.57/149,783.67 = 63,247.63/x - Step 3: Cross multiply
108,538.57x = 149,783.67 × 63,247.63 - Step 4: Simplify right side
108,538.57x = 9,473,462,140.20 - Step 5: Solve for x
x = 9,473,462,140.20/108,538.57 - Step 6: Final answer
x = 87,281.99
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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.