Finding the Fourth Proportional to 124,957.69, 172,441.61 and 68,369.06
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Solution
The fourth proportional to 124,957.69, 172,441.61 and 68,369.06 is: 94,349.31
Step by Step Solution
- Step 1: Write the proportion equation
124,957.69 : 172,441.61 = 68,369.06 : x - Step 2: Convert to fraction form
124,957.69/172,441.61 = 68,369.06/x - Step 3: Cross multiply
124,957.69x = 172,441.61 × 68,369.06 - Step 4: Simplify right side
124,957.69x = 11,789,671,126.23 - Step 5: Solve for x
x = 11,789,671,126.23/124,957.69 - Step 6: Final answer
x = 94,349.31
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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.