Finding the Fourth Proportional to 124,218.63, 171,421.71 and 67,629.99
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Solution
The fourth proportional to 124,218.63, 171,421.71 and 67,629.99 is: 93,329.39
Step by Step Solution
- Step 1: Write the proportion equation
124,218.63 : 171,421.71 = 67,629.99 : x - Step 2: Convert to fraction form
124,218.63/171,421.71 = 67,629.99/x - Step 3: Cross multiply
124,218.63x = 171,421.71 × 67,629.99 - Step 4: Simplify right side
124,218.63x = 11,593,248,533.08 - Step 5: Solve for x
x = 11,593,248,533.08/124,218.63 - Step 6: Final answer
x = 93,329.39
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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.