Finding the Fourth Proportional to 103,656.12, 155,487.42 and 28,777.02
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Solution
The fourth proportional to 103,656.12, 155,487.42 and 28,777.02 is: 43,166.43
Step by Step Solution
- Step 1: Write the proportion equation
103,656.12 : 155,487.42 = 28,777.02 : x - Step 2: Convert to fraction form
103,656.12/155,487.42 = 28,777.02/x - Step 3: Cross multiply
103,656.12x = 155,487.42 × 28,777.02 - Step 4: Simplify right side
103,656.12x = 4,474,464,595.09 - Step 5: Solve for x
x = 4,474,464,595.09/103,656.12 - Step 6: Final answer
x = 43,166.43
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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.