Finding the Fourth Proportional to 158,464.08, 218,680.74 and 86,846.76
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Solution
The fourth proportional to 158,464.08, 218,680.74 and 86,846.76 is: 119,848.70
Step by Step Solution
- Step 1: Write the proportion equation
158,464.08 : 218,680.74 = 86,846.76 : x - Step 2: Convert to fraction form
158,464.08/218,680.74 = 86,846.76/x - Step 3: Cross multiply
158,464.08x = 218,680.74 × 86,846.76 - Step 4: Simplify right side
158,464.08x = 18,991,713,743.40 - Step 5: Solve for x
x = 18,991,713,743.40/158,464.08 - Step 6: Final answer
x = 119,848.70
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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.