Finding the Fourth Proportional to 125,104.21, 172,656.14 and 71,397.31
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Solution
The fourth proportional to 125,104.21, 172,656.14 and 71,397.31 is: 98,535.32
Step by Step Solution
- Step 1: Write the proportion equation
125,104.21 : 172,656.14 = 71,397.31 : x - Step 2: Convert to fraction form
125,104.21/172,656.14 = 71,397.31/x - Step 3: Cross multiply
125,104.21x = 172,656.14 × 71,397.31 - Step 4: Simplify right side
125,104.21x = 12,327,183,950.98 - Step 5: Solve for x
x = 12,327,183,950.98/125,104.21 - Step 6: Final answer
x = 98,535.32
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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.