Finding the Fourth Proportional to 166,821.99, 230,214.47 and 90,341.68
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Solution
The fourth proportional to 166,821.99, 230,214.47 and 90,341.68 is: 124,671.59
Step by Step Solution
- Step 1: Write the proportion equation
166,821.99 : 230,214.47 = 90,341.68 : x - Step 2: Convert to fraction form
166,821.99/230,214.47 = 90,341.68/x - Step 3: Cross multiply
166,821.99x = 230,214.47 × 90,341.68 - Step 4: Simplify right side
166,821.99x = 20,797,961,980.11 - Step 5: Solve for x
x = 20,797,961,980.11/166,821.99 - Step 6: Final answer
x = 124,671.59
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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.