Finding the Fourth Proportional to 136,012.53, 187,696.58 and 74,760.13
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Solution
The fourth proportional to 136,012.53, 187,696.58 and 74,760.13 is: 103,168.59
Step by Step Solution
- Step 1: Write the proportion equation
136,012.53 : 187,696.58 = 74,760.13 : x - Step 2: Convert to fraction form
136,012.53/187,696.58 = 74,760.13/x - Step 3: Cross multiply
136,012.53x = 187,696.58 × 74,760.13 - Step 4: Simplify right side
136,012.53x = 14,032,220,721.36 - Step 5: Solve for x
x = 14,032,220,721.36/136,012.53 - Step 6: Final answer
x = 103,168.59
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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.