Finding the Fourth Proportional to 126,742.24, 174,904.14 and 73,029.52
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Solution
The fourth proportional to 126,742.24, 174,904.14 and 73,029.52 is: 100,780.65
Step by Step Solution
- Step 1: Write the proportion equation
126,742.24 : 174,904.14 = 73,029.52 : x - Step 2: Convert to fraction form
126,742.24/174,904.14 = 73,029.52/x - Step 3: Cross multiply
126,742.24x = 174,904.14 × 73,029.52 - Step 4: Simplify right side
126,742.24x = 12,773,165,390.21 - Step 5: Solve for x
x = 12,773,165,390.21/126,742.24 - Step 6: Final answer
x = 100,780.65
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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.