Finding the Fourth Proportional to 158,088.65, 218,160.74 and 86,470.07
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Solution
The fourth proportional to 158,088.65, 218,160.74 and 86,470.07 is: 119,327.82
Step by Step Solution
- Step 1: Write the proportion equation
158,088.65 : 218,160.74 = 86,470.07 : x - Step 2: Convert to fraction form
158,088.65/218,160.74 = 86,470.07/x - Step 3: Cross multiply
158,088.65x = 218,160.74 × 86,470.07 - Step 4: Simplify right side
158,088.65x = 18,864,373,584.42 - Step 5: Solve for x
x = 18,864,373,584.42/158,088.65 - Step 6: Final answer
x = 119,327.82
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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.