Finding the Fourth Proportional to 158,245.84, 218,372.68 and 86,624.08
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Solution
The fourth proportional to 158,245.84, 218,372.68 and 86,624.08 is: 119,537.63
Step by Step Solution
- Step 1: Write the proportion equation
158,245.84 : 218,372.68 = 86,624.08 : x - Step 2: Convert to fraction form
158,245.84/218,372.68 = 86,624.08/x - Step 3: Cross multiply
158,245.84x = 218,372.68 × 86,624.08 - Step 4: Simplify right side
158,245.84x = 18,916,332,502.13 - Step 5: Solve for x
x = 18,916,332,502.13/158,245.84 - Step 6: Final answer
x = 119,537.63
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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.