Finding the Fourth Proportional to 119,904.05, 165,468.74 and 66,187.91
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Solution
The fourth proportional to 119,904.05, 165,468.74 and 66,187.91 is: 91,339.95
Step by Step Solution
- Step 1: Write the proportion equation
119,904.05 : 165,468.74 = 66,187.91 : x - Step 2: Convert to fraction form
119,904.05/165,468.74 = 66,187.91/x - Step 3: Cross multiply
119,904.05x = 165,468.74 × 66,187.91 - Step 4: Simplify right side
119,904.05x = 10,952,028,912.65 - Step 5: Solve for x
x = 10,952,028,912.65/119,904.05 - Step 6: Final answer
x = 91,339.95
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1.5x scale
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.