Finding the Fourth Proportional to 122,565.08, 169,121.39 and 68,839.80
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Solution
The fourth proportional to 122,565.08, 169,121.39 and 68,839.80 is: 94,988.58
Step by Step Solution
- Step 1: Write the proportion equation
122,565.08 : 169,121.39 = 68,839.80 : x - Step 2: Convert to fraction form
122,565.08/169,121.39 = 68,839.80/x - Step 3: Cross multiply
122,565.08x = 169,121.39 × 68,839.80 - Step 4: Simplify right side
122,565.08x = 11,642,282,319.12 - Step 5: Solve for x
x = 11,642,282,319.12/122,565.08 - Step 6: Final answer
x = 94,988.58
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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.