Finding the Fourth Proportional to 122,735.60, 169,362.84 and 69,012.08
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Solution
The fourth proportional to 122,735.60, 169,362.84 and 69,012.08 is: 95,229.76
Step by Step Solution
- Step 1: Write the proportion equation
122,735.60 : 169,362.84 = 69,012.08 : x - Step 2: Convert to fraction form
122,735.60/169,362.84 = 69,012.08/x - Step 3: Cross multiply
122,735.60x = 169,362.84 × 69,012.08 - Step 4: Simplify right side
122,735.60x = 11,688,081,863.11 - Step 5: Solve for x
x = 11,688,081,863.11/122,735.60 - Step 6: Final answer
x = 95,229.76
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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.