Finding the Fourth Proportional to 103,662.99, 143,053.14 and 58,340.91
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Solution
The fourth proportional to 103,662.99, 143,053.14 and 58,340.91 is: 80,509.45
Step by Step Solution
- Step 1: Write the proportion equation
103,662.99 : 143,053.14 = 58,340.91 : x - Step 2: Convert to fraction form
103,662.99/143,053.14 = 58,340.91/x - Step 3: Cross multiply
103,662.99x = 143,053.14 × 58,340.91 - Step 4: Simplify right side
103,662.99x = 8,345,850,365.96 - Step 5: Solve for x
x = 8,345,850,365.96/103,662.99 - Step 6: Final answer
x = 80,509.45
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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.