Finding the Fourth Proportional to 101,915.19, 140,638.26 and 56,596.08
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Solution
The fourth proportional to 101,915.19, 140,638.26 and 56,596.08 is: 78,099.98
Step by Step Solution
- Step 1: Write the proportion equation
101,915.19 : 140,638.26 = 56,596.08 : x - Step 2: Convert to fraction form
101,915.19/140,638.26 = 56,596.08/x - Step 3: Cross multiply
101,915.19x = 140,638.26 × 56,596.08 - Step 4: Simplify right side
101,915.19x = 7,959,574,214.02 - Step 5: Solve for x
x = 7,959,574,214.02/101,915.19 - Step 6: Final answer
x = 78,099.98
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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.