Finding the Fourth Proportional to 122,967.28, 169,693.08 and 69,252.88
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Solution
The fourth proportional to 122,967.28, 169,693.08 and 69,252.88 is: 95,567.98
Step by Step Solution
- Step 1: Write the proportion equation
122,967.28 : 169,693.08 = 69,252.88 : x - Step 2: Convert to fraction form
122,967.28/169,693.08 = 69,252.88/x - Step 3: Cross multiply
122,967.28x = 169,693.08 × 69,252.88 - Step 4: Simplify right side
122,967.28x = 11,751,734,506.07 - Step 5: Solve for x
x = 11,751,734,506.07/122,967.28 - Step 6: Final answer
x = 95,567.98
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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.