Finding the Fourth Proportional to 153,527.87, 211,862.40 and 85,543.08
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Solution
The fourth proportional to 153,527.87, 211,862.40 and 85,543.08 is: 118,046.08
Step by Step Solution
- Step 1: Write the proportion equation
153,527.87 : 211,862.40 = 85,543.08 : x - Step 2: Convert to fraction form
153,527.87/211,862.40 = 85,543.08/x - Step 3: Cross multiply
153,527.87x = 211,862.40 × 85,543.08 - Step 4: Simplify right side
153,527.87x = 18,123,362,232.19 - Step 5: Solve for x
x = 18,123,362,232.19/153,527.87 - Step 6: Final answer
x = 118,046.08
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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.