Finding the Fourth Proportional to 124,611.36, 171,963.18 and 68,022.78
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Solution
The fourth proportional to 124,611.36, 171,963.18 and 68,022.78 is: 93,871.17
Step by Step Solution
- Step 1: Write the proportion equation
124,611.36 : 171,963.18 = 68,022.78 : x - Step 2: Convert to fraction form
124,611.36/171,963.18 = 68,022.78/x - Step 3: Cross multiply
124,611.36x = 171,963.18 × 68,022.78 - Step 4: Simplify right side
124,611.36x = 11,697,413,561.24 - Step 5: Solve for x
x = 11,697,413,561.24/124,611.36 - Step 6: Final answer
x = 93,871.17
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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.