Finding the Fourth Proportional to 122,878.08, 169,577.15 and 69,166.53
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Solution
The fourth proportional to 122,878.08, 169,577.15 and 69,166.53 is: 95,452.85
Step by Step Solution
- Step 1: Write the proportion equation
122,878.08 : 169,577.15 = 69,166.53 : x - Step 2: Convert to fraction form
122,878.08/169,577.15 = 69,166.53/x - Step 3: Cross multiply
122,878.08x = 169,577.15 × 69,166.53 - Step 4: Simplify right side
122,878.08x = 11,729,062,686.96 - Step 5: Solve for x
x = 11,729,062,686.96/122,878.08 - Step 6: Final answer
x = 95,452.85
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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.