Finding the Fourth Proportional to 112,867.61, 169,284.12 and 29,768.09
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Solution
The fourth proportional to 112,867.61, 169,284.12 and 29,768.09 is: 44,647.57
Step by Step Solution
- Step 1: Write the proportion equation
112,867.61 : 169,284.12 = 29,768.09 : x - Step 2: Convert to fraction form
112,867.61/169,284.12 = 29,768.09/x - Step 3: Cross multiply
112,867.61x = 169,284.12 × 29,768.09 - Step 4: Simplify right side
112,867.61x = 5,039,264,919.73 - Step 5: Solve for x
x = 5,039,264,919.73/112,867.61 - Step 6: Final answer
x = 44,647.57
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.