Finding the Fourth Proportional to 115,973.05, 160,042.83 and 70,651.02
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Solution
The fourth proportional to 115,973.05, 160,042.83 and 70,651.02 is: 97,498.42
Step by Step Solution
- Step 1: Write the proportion equation
115,973.05 : 160,042.83 = 70,651.02 : x - Step 2: Convert to fraction form
115,973.05/160,042.83 = 70,651.02/x - Step 3: Cross multiply
115,973.05x = 160,042.83 × 70,651.02 - Step 4: Simplify right side
115,973.05x = 11,307,189,183.19 - Step 5: Solve for x
x = 11,307,189,183.19/115,973.05 - Step 6: Final answer
x = 97,498.42
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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.