Finding the Fourth Proportional to 158,337.14, 218,497.10 and 86,703.30
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Solution
The fourth proportional to 158,337.14, 218,497.10 and 86,703.30 is: 119,646.09
Step by Step Solution
- Step 1: Write the proportion equation
158,337.14 : 218,497.10 = 86,703.30 : x - Step 2: Convert to fraction form
158,337.14/218,497.10 = 86,703.30/x - Step 3: Cross multiply
158,337.14x = 218,497.10 × 86,703.30 - Step 4: Simplify right side
158,337.14x = 18,944,419,176.91 - Step 5: Solve for x
x = 18,944,419,176.91/158,337.14 - Step 6: Final answer
x = 119,646.09
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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.