Finding the Fourth Proportional to 135,823.74, 203,610.87 and 47,015.12
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Solution
The fourth proportional to 135,823.74, 203,610.87 and 47,015.12 is: 70,479.49
Step by Step Solution
- Step 1: Write the proportion equation
135,823.74 : 203,610.87 = 47,015.12 : x - Step 2: Convert to fraction form
135,823.74/203,610.87 = 47,015.12/x - Step 3: Cross multiply
135,823.74x = 203,610.87 × 47,015.12 - Step 4: Simplify right side
135,823.74x = 9,572,788,468.30 - Step 5: Solve for x
x = 9,572,788,468.30/135,823.74 - Step 6: Final answer
x = 70,479.49
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1.5x scale
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.