Finding the Fourth Proportional to 124,937.24, 172,413.80 and 68,349.04
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Solution
The fourth proportional to 124,937.24, 172,413.80 and 68,349.04 is: 94,321.90
Step by Step Solution
- Step 1: Write the proportion equation
124,937.24 : 172,413.80 = 68,349.04 : x - Step 2: Convert to fraction form
124,937.24/172,413.80 = 68,349.04/x - Step 3: Cross multiply
124,937.24x = 172,413.80 × 68,349.04 - Step 4: Simplify right side
124,937.24x = 11,784,317,712.75 - Step 5: Solve for x
x = 11,784,317,712.75/124,937.24 - Step 6: Final answer
x = 94,321.90
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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.