Finding the Fourth Proportional to 105,254.14, 145,249.02 and 57,506.47
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Solution
The fourth proportional to 105,254.14, 145,249.02 and 57,506.47 is: 79,357.99
Step by Step Solution
- Step 1: Write the proportion equation
105,254.14 : 145,249.02 = 57,506.47 : x - Step 2: Convert to fraction form
105,254.14/145,249.02 = 57,506.47/x - Step 3: Cross multiply
105,254.14x = 145,249.02 × 57,506.47 - Step 4: Simplify right side
105,254.14x = 8,352,757,684.91 - Step 5: Solve for x
x = 8,352,757,684.91/105,254.14 - Step 6: Final answer
x = 79,357.99
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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.