Finding the Fourth Proportional to 110,659.42, 165,988.80 and 47,438.56
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Solution
The fourth proportional to 110,659.42, 165,988.80 and 47,438.56 is: 71,157.70
Step by Step Solution
- Step 1: Write the proportion equation
110,659.42 : 165,988.80 = 47,438.56 : x - Step 2: Convert to fraction form
110,659.42/165,988.80 = 47,438.56/x - Step 3: Cross multiply
110,659.42x = 165,988.80 × 47,438.56 - Step 4: Simplify right side
110,659.42x = 7,874,269,648.13 - Step 5: Solve for x
x = 7,874,269,648.13/110,659.42 - Step 6: Final answer
x = 71,157.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.