Finding the Fourth Proportional to 151,563.61, 209,169.71 and 83,586.79
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Solution
The fourth proportional to 151,563.61, 209,169.71 and 83,586.79 is: 115,356.35
Step by Step Solution
- Step 1: Write the proportion equation
151,563.61 : 209,169.71 = 83,586.79 : x - Step 2: Convert to fraction form
151,563.61/209,169.71 = 83,586.79/x - Step 3: Cross multiply
151,563.61x = 209,169.71 × 83,586.79 - Step 4: Simplify right side
151,563.61x = 17,483,824,624.13 - Step 5: Solve for x
x = 17,483,824,624.13/151,563.61 - Step 6: Final answer
x = 115,356.35
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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.