Finding the Fourth Proportional to 134,720.19, 185,915.13 and 74,292.96
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Solution
The fourth proportional to 134,720.19, 185,915.13 and 74,292.96 is: 102,524.98
Step by Step Solution
- Step 1: Write the proportion equation
134,720.19 : 185,915.13 = 74,292.96 : x - Step 2: Convert to fraction form
134,720.19/185,915.13 = 74,292.96/x - Step 3: Cross multiply
134,720.19x = 185,915.13 × 74,292.96 - Step 4: Simplify right side
134,720.19x = 13,812,185,316.48 - Step 5: Solve for x
x = 13,812,185,316.48/134,720.19 - Step 6: Final answer
x = 102,524.98
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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.