Finding the Fourth Proportional to 118,721.04, 177,798.86 and 68,695.71
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Solution
The fourth proportional to 118,721.04, 177,798.86 and 68,695.71 is: 102,879.99
Step by Step Solution
- Step 1: Write the proportion equation
118,721.04 : 177,798.86 = 68,695.71 : x - Step 2: Convert to fraction form
118,721.04/177,798.86 = 68,695.71/x - Step 3: Cross multiply
118,721.04x = 177,798.86 × 68,695.71 - Step 4: Simplify right side
118,721.04x = 12,214,019,096.63 - Step 5: Solve for x
x = 12,214,019,096.63/118,721.04 - Step 6: Final answer
x = 102,879.99
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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.