Finding the Fourth Proportional to 124,257.71, 171,474.37 and 67,669.09
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Solution
The fourth proportional to 124,257.71, 171,474.37 and 67,669.09 is: 93,382.65
Step by Step Solution
- Step 1: Write the proportion equation
124,257.71 : 171,474.37 = 67,669.09 : x - Step 2: Convert to fraction form
124,257.71/171,474.37 = 67,669.09/x - Step 3: Cross multiply
124,257.71x = 171,474.37 × 67,669.09 - Step 4: Simplify right side
124,257.71x = 11,603,513,978.36 - Step 5: Solve for x
x = 11,603,513,978.36/124,257.71 - Step 6: Final answer
x = 93,382.65
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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.