Finding the Fourth Proportional to 126,064.98, 189,097.47 and 72,837.99
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Solution
The fourth proportional to 126,064.98, 189,097.47 and 72,837.99 is: 109,256.99
Step by Step Solution
- Step 1: Write the proportion equation
126,064.98 : 189,097.47 = 72,837.99 : x - Step 2: Convert to fraction form
126,064.98/189,097.47 = 72,837.99/x - Step 3: Cross multiply
126,064.98x = 189,097.47 × 72,837.99 - Step 4: Simplify right side
126,064.98x = 13,773,479,628.89 - Step 5: Solve for x
x = 13,773,479,628.89/126,064.98 - Step 6: Final answer
x = 109,256.99
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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.