Finding the Fourth Proportional to 121,037.36, 181,430.99 and 46,137.40
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Solution
The fourth proportional to 121,037.36, 181,430.99 and 46,137.40 is: 69,158.43
Step by Step Solution
- Step 1: Write the proportion equation
121,037.36 : 181,430.99 = 46,137.40 : x - Step 2: Convert to fraction form
121,037.36/181,430.99 = 46,137.40/x - Step 3: Cross multiply
121,037.36x = 181,430.99 × 46,137.40 - Step 4: Simplify right side
121,037.36x = 8,370,753,646.78 - Step 5: Solve for x
x = 8,370,753,646.78/121,037.36 - Step 6: Final answer
x = 69,158.43
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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.