Finding the Fourth Proportional to 151,723.68, 209,378.52 and 84,655.68
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Solution
The fourth proportional to 151,723.68, 209,378.52 and 84,655.68 is: 116,824.75
Step by Step Solution
- Step 1: Write the proportion equation
151,723.68 : 209,378.52 = 84,655.68 : x - Step 2: Convert to fraction form
151,723.68/209,378.52 = 84,655.68/x - Step 3: Cross multiply
151,723.68x = 209,378.52 × 84,655.68 - Step 4: Simplify right side
151,723.68x = 17,725,080,987.99 - Step 5: Solve for x
x = 17,725,080,987.99/151,723.68 - Step 6: Final answer
x = 116,824.75
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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.